Question

simply the following.a.(x²+y²)×(x²+y²)+(x²-y²)×(x²+y²)​

Answer 1

Answer:

(x²+y²)×(x²+y²)+(x²-y²)×(x²+y²)

(x⁴+x²y²+x²y²+y⁴)+(x⁴+x²y²-x²y²-y⁴)

x⁴+2x²y²+y⁴+x⁴-y⁴

2x⁴+2x²y²

2(x⁴+x²y²)

Answer 2

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${(x}^{2}{+}{y}^{2)}\times{(x}^{2}{+}{y}^{2)} {+} {(x}^{2}{-}{y}^{2)}\times{(x}^{2}{+}{y}^{2)}$

${({x}^{4}{+}{x}^{2}{y}^{2}{+}{x}^{2}{y}^{2}{+}{y}^{4})}{+}{({x}^{4}{+}{x}^{2}{y}^{2}{-}{x}^{2}{y}^{2}{-}{y}^{4})}$

${x}^{4}{-}{2x}^{2}{y}^{2}{+}{y}^{4}{-}{y}^{4}$

${2x}^{4}{+}{2x}^{2}{y}^{2}$

2 ${(x}^{4}{+}{x}^{2}{y}^{2)}$ .

$<font color=green>$

Thanks..... (♥_♥)