Question

If -4 is the root of equation X2 + px - 4 =0 and the equation X2 + PX + Q =0 has equal roots, then find the values of P and Q.

Answer 1

Answer:

Step-by-step explanation:

-4² + -4p - 4 = 0

16 - 4p - 4 = 0

- 4 p + 12 = 0

p = 3

b² - 4 a c = 0 since equal roots.

p² - 4 x 1 x q = 0

9 - 4q = 0

q = 9/4

Answer 2

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