Question

factorise completely 49(x+y)^2-64(x-y)^2

Answer 1

Answer:

Step-by-step explanation:

(7)^2(x+y)^2-(8)^2(x-y)^2

[7(x+y)]^2-[8(x-y)]^2

[8(x+y)]+7(x-y)][8(x+y)(x-y)]

[8x+8y-7x+7y][8x+8y+7x-7y)

(15x-y)(15x-y)

This is your answer

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Answer 2

Answer:

So, your answer is (15x-y)(15x-y)

Step-by-step explanation:

please refer the picture