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The value of x such that 3^(2x)-2(3^(x+2...

The value of x such that `3^(2x)-2(3^(x+2))+81=0` is

A

`1`

B

`2`

C

`3`

D

`4`

Text Solution

Verified by Experts

The correct Answer is:
B
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NEW JOYTHI PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-QUESTIONS FROM COMPETITIVE EXAMS
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  3. The value of x such that 3^(2x)-2(3^(x+2))+81=0 is

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  6. z and omega are two nonzero complex number such that |z|=|omega|" and ...

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  7. If |z-4| lt |z-2|, its solution is given by

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  8. The locus of the centre of a circle which touches the circle |z-z(1)|=...

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  9. If alpha ne beta" but "alpha^(2)=5 alpha-3" and "beta^(2)= 5 beta-3 th...

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  10. Difference between the corresponding roots of x^(2)+ax+b=0" and "x^(2)...

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  11. Product of real roots of the equation x^(2)+|x|+9=0

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  12. If p and q are the roots of the equation x^(2)+px+q=0, then

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  13. If a,b , c are distinct +ve real numbers and a^(2)+b^(2)+c^(2)=1" then...

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  14. The value of a for which one root of the quadratic equation (a^(2)-5a+...

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  15. If the sum of the roots of the quadratic equation ax^(2)+bx+c=0 is equ...

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  16. The number of real solution of the equation x^(2)-3|x|+2=0 is

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  17. If ((1+i)/(1-i))^(x)=1, then

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  18. If z and omega are two non-zero complex numbers such that |z omega|=1"...

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  19. Let z(1)" and "z(2) be two roots of the equation z^(2)+az+b=0, z being...

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  20. Let two numbers have arithmetic mean 9 and geometric mean 4. Then thes...

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