Factorisation of 63x2 - 112y2 is
a. 63 (x-2y) (x + 2y)
b.7 (3x + 2y) (3x - 2y)
c. 7(3x + 4y) (3x - 4y)
d. None of these
Answers
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Step-by-step explanation:
63x^2-112y^2
=7(9x^2-16y^2)
=7{(3x)^2-(4y)^2}
=7{(3x+4y)(3x-4y)} option C
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