Question

answer maths std 7-
(2x+3y)(2x-3y)
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Answer 1

Step-by-step explanation:

$(2x + 3y)(2x - 3y) \\ \\ (a + b)(a - b) = (a - b {)}^{2} \\ \\ = (2x {)}^{2} - (3y {)}^{2}$

Answer 2

Answer:

(2x)2 - (3y)2 {a2-b2}

4x2-9y2