find the square of (4x-3y) only using identities
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11
(4x-3y)²
=16x²+9y²-24xy
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5
Step-by-step explanation:
(4x-3y)^2
= [(4x)^2-2(4x)(3y)+(3y)^2]. { (a-b)^2= a^2-2ab+y^2}
= [16x^2-24xy+9y^2]
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