-3 is a root of the quadratic equation 2 x2-p x-15-0- For what value of q- the equation px2-x-q-0 has equal roots-

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Byju's Answer

Standard X

Mathematics

Nature of Roots

-3 is a root ...

Question

-3 is a root of the quadratic equation 2x² +px - 15 = 0. For what value of q , the equation p(x² + x ) + q= 0 has equal roots?

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Solution

The correct option is D
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Similar questions

Q. If -5 is a root of the quadratic equation

2 x^{2} + p x - 15 = 0

and the quadratic equation

p (x^{2} + x) + k = 0

has equal roots, find the value of k.

If $- 5$ is a root of the quadratic equation $2 x^{2} + p x - 15 = 0$ and the quadratic equation $p (x^{2} + x) + k = 0$ has equal roots, find the value of $k$ .

Q. If

- 5

is one root of quadratic equation

2 x^{2} + p x - 15 = 0

and roots of quadratic equation

p (x^{2} + x) + k = 0

is equal ,then find the value of

k

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-3 is a root of the quadratic equation 2x2 +px - 15 = 0. For what value of q , the equation p(x2 + x ) + q= 0 has equal roots?

The correct option is D 1/4

-3 is a root of the quadratic equation 2x² +px - 15 = 0. For what value of q , the equation p(x² + x ) + q= 0 has equal roots?

The correct option is D
1/4