Question

Factorise
A. 64x²-81y²
B. (7a-4b)²+(7a+4b)²
C. 3-48b²​

Answer 1

Answer:

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Answer 2

Answer:

A.= By (A^2- B^2)= (A+b)(A-b)

(64x^2-81y^2)= (8x)^2-(9y)^2

according to the property, the answer is= (8x+9y)(8x-9y)

B.= (49^2 - 16b^2) (the answer might me wrong)

C.= take 3 as common

3(1-16b^2)