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Show that x=-3 is solution of x^2+6x+9=...

Show that `x=-3` is solution of `x^2+6x+9=0`

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Solve the following equation , 3x^2 +6x -9 =0

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X BOARDS-X Boards-All Questions
  1. If (x+ p) is a factor of the polynomial 2x^2 +2px+5x 10. find p.

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  2. The common difference of the AP 1/p,(1-p)/p,(1-2p)/p..........is

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  3. Show that x=-3 is solution of x^2+6x+9=0

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  4. First the term of an A.P is p and its common difference is q. Find its...

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  5. If tan A=5/12, find the value of (sin A+cos A) sec A

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  6. The diagonals of a rhombus measure 16 cm and 30 cm. Find its perime...

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  7. In Figure 1, PQ || BC and AP : PB = 1 : 2.find the ratio of (arDeltaAP...

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  8. The surface area of a sphere is 346.5 cm^2, calculate its radius and ...

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  9. A die is thrown once. Find the probability of getting (i) a prime numb...

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  10. Find the class marks of classes 10-25 and 35-55.

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  11. Find all the zeros of the polynomial x^4+x^3-34x^2-4x+120, if two of i...

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  12. PA and PB are two tangents drawn from an external point P to a circle ...

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  13. In Fig. 2, a circle with centre O is inscribed in a quadrilateral ABCD...

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  14. The angle of depression of a car parked on the road from the top of th...

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  15. 4 A dice is thrown once, then the probability of getting an odd prime ...

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  16. Find the probability of getting an even number when a die is thrown

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  17. A box contains 90 discs, numbered from 1 to 90. If one disc is drawn a...

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  18. In Fig. 3, the area of triangle ABC (in sq. units) is :

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  19. If s e c4A=cos e c(A-20^@) , where 4A is an acute angle, find the ...

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  20. Solve the following quadratic equation : 4sqrt3x^(2)+5x-2sqrt3=0

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