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Solve the equation x^(2)-6x+25=0 by fact...

Solve the equation `x^(2)-6x+25=0` by factorization method.

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To solve the equation \( x^2 - 6x + 25 = 0 \) using the factorization method, we can follow these steps: ### Step 1: Rewrite the equation We start with the equation: \[ x^2 - 6x + 25 = 0 \] ### Step 2: Identify the constant term We notice that the constant term is 25. We can try to express 25 in a way that helps us factor the equation. We can break down 25 as \( 9 + 16 \): \[ x^2 - 6x + 9 + 16 = 0 \] ### Step 3: Group the terms Now, we can group the terms: \[ (x^2 - 6x + 9) + 16 = 0 \] The expression \( x^2 - 6x + 9 \) can be factored as: \[ (x - 3)^2 \] So, we rewrite the equation: \[ (x - 3)^2 + 16 = 0 \] ### Step 4: Rewrite the equation in terms of squares Next, we can express 16 as \( (4i)^2 \) (since \( i^2 = -1 \)): \[ (x - 3)^2 - (4i)^2 = 0 \] ### Step 5: Apply the difference of squares formula Now we can use the difference of squares formula \( a^2 - b^2 = (a - b)(a + b) \): \[ (x - 3 - 4i)(x - 3 + 4i) = 0 \] ### Step 6: Set each factor to zero Now we can set each factor to zero: 1. \( x - 3 - 4i = 0 \) 2. \( x - 3 + 4i = 0 \) ### Step 7: Solve for \( x \) From the first equation: \[ x - 3 = 4i \implies x = 3 + 4i \] From the second equation: \[ x - 3 = -4i \implies x = 3 - 4i \] ### Final Solution Thus, the roots of the equation \( x^2 - 6x + 25 = 0 \) are: \[ x = 3 + 4i \quad \text{and} \quad x = 3 - 4i \] ---

To solve the equation \( x^2 - 6x + 25 = 0 \) using the factorization method, we can follow these steps: ### Step 1: Rewrite the equation We start with the equation: \[ x^2 - 6x + 25 = 0 \] ...
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NAGEEN PRAKASHAN ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATION -MISCELLANEOUS EXERCISE
  1. Solve the equation x^(2)-6x+25=0 by factorization method.

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  2. Evaluate : [i^(18)+(1/i)^(25)]^3

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  3. For any two complex numbers z1and z2, prove that R e(z1z2)=R ez1R e z2...

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  4. Reduce (1/(1-4i)-2/(1+i))((3-4i)/(5+i))to the standard form.

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  5. If under root of (a+i b)/(c+i d)=x+i y , Prove (a^2+b^2)/(c^2+d^2)=(x...

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  6. Convert the following in the polar form : (i) (1+7i)/((2-i)^2) (ii) (...

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  7. Solve the equation : 3x^2-4x+(20)/3=0

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  8. Solve the equation :x^2-2x+3/2=0

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  9. Solve the equation :27 x^2-10 x+1=0

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  10. Solve the following quadratic: 21 x^2-28 x+10=0

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  11. If z1=2-i ,z2=1+i ,find |(z1+z2+1)/(z1-z2+i)|

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  12. If a + i b =((x+i)^2)/(2x^2+1),prove that a^2+b^2=((x^2+1)^2)/((2x^2+...

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  13. If z1=2-i ,\ +2=-2+i , find : R e((z1z2)/(z1))

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  14. Find the modulus and argument of the complex number (1+2i)/(1-3i).

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  15. Find the real numbers x and y if (x-i y)(3+5i)is the conjugate of -6-...

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  16. Find the modulus of (1+i)/(1-i)-(1-i)/(1+i)

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  17. If (x+i y)^3=u+i v ,then show that u/x+v/y=4(x^2-y^2).

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  18. If alphaand betaare different complex numbers with |beta|=1,then fin...

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  19. Find the number of non-zero integral solution of the equation |1-i|^x=...

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  20. If (a + ib) (c + id) (e + if) (g + ih) = A + iB, then show that (a^2 +...

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  21. If ((1+i)/(1-i))^m=1, then find the least positive integral value of m...

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