RomanticBabeidn
Answered

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Factorise it

(x + 2y)² – (x – 2y)²
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Sagot :

Loneguyidn

[tex]\text{Given that,}\\\\(x+2y)^2 - (x-2y)^2\\\\=(x+2y +x -2y)(x+2y -x+2y)~~~~;[a^2 - b^2 = (a+b)(a-b)]\\\\=(2x)(4y)\\\\=8xy[/tex]

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