Question

64x2-81y2 factorise it​

Answer 1

Answer:

$= > 64 {x}^{2} - 81 {y}^{2} \\ = > {(8x)}^{2} - {(9y)}^{2} \\ = > (8x + 9y)(8x - 9y).$

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Answer 2

Step-by-step explanation:

(8x)^2-(9y)^2

=(8x-9y)(8x+9y)