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in Factorization by (58.8k points)

Factorise: 63a2 -112b2

1 Answer

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Best answer

By simplifying further the above equation is 7(9a2 – 16b2)

By using the formula a2 – b2 = (a+b) (a-b)

Now solving for the above equation

7(9a2 – 16b2

= 7((3a)2 – (4b)2)

= 7(3a+4b) (3a-4b)

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