solve (7x/4-2y/3)^2
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Step-by-step explanation:
=(7x/4-2y/3)^2
=using identity
=(A-B)^2=a^2-2ab+b^2
=(7x/4)^2-2(7x/4) (2y/3)+(2y/3)^2
=49x^2/16-28xy/12+4y^2/9
=49x^2/16+4y^2/9-28xy/12
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