Question

factorise the following9x²-16y²​

Answer 1

Answer:

$9 {x}^{2} - 16 {y}^{2} \\ \\ = (3x) ^{2} - (4y )^{2} \\ \\ = (3x + 4y)(3x - 4y) \\ \\ formula \: used \\ \\ {a}^{2} - {b}^{2} \\ \\ = (a + b)(a - b)$

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Answer 2

RELEVANT ANSWER ⬇️..

9x^2 - 16y^2

=》(3x)^2 - (4y)^2

=》(3x + 4y) (3x - 4y)

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