Question

Find the value of P cube minus Q cube if P minus Q equal to minus 7 and PQ equal to minus 10
class 9 maths polynomials ncert cbse​
will mark as brainlest for th 1st comnt sure
with step by step equating through the idenity

Answer 1

Answer:

- 133

Step-by-step explanation:

p - q = - 7 ----> p = q - 7

pq = - 10

(q - 7) * q = - 10 ---> q^2 - 7q + 10 = 0

if you will factorize: (q - 5)(q - 2) = 0

then q = 5 or q = 2

and  p = - 2 or p = - 5

(p, q) are (- 2, 5) or (- 5, 2)

(- 2)^3 - 5^3 = - 8 - 125 = - 133

(- 5)^3 - 2^3 = - 125 - 8 = - 133

Answer 2

Answer:

This is your answer dear.

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