Question

(3ab+5xy)^2-(3ab-5xy)^2
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Answer 1

Answer:

$9a {}^{2} b {}^{2} + 25x {}^{2} y {}^{2} + 30abxy - (9a { }^{2} b {}^{2} + 25x {}^{2} y {}^{2} - 30abxy)$

$9a {}^{2} b {}^{2} + 25x {}^{2} y {}^{2} + 30abxy - 9a {}^{2} b {}^{2} - 25x {}^{2} y {}^{2} + 30abxy$

$30abxy$