Question

simplify (2x+y)^3+(2x-y)^3​

Answer 1

hey mate !!!

simplify (2x+y)^3+(2x-y)^3

Solution :-

we know that

(a³+b³)=(a+b)(a²-ab+b²)

so,

(2x+y)^3+(2x-y)^3

=(2x+y+2x-y)[(2x+y)²+(2x-y)²-(2x+y)(2x-y)]

=(4x)[(4x²+y²+4xy)+(4x²+y²-4xy)-(4x²-y²)]

=4x[4x²+y²+4xy+4x²+y²-4xy-4x²+y²]

=4x[4x²+3y²]

i hopes its helps u

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@Abhi.❤❤