a) (2x²+y⁵)²=4x⁴+4x²y⁵+y¹⁰b) (2+3√5)²=4+12√5+45=49+12√5c) (4-√3)(4+√3)=16-3
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a) (2x²+y⁵)²=4x⁴+4x²y⁵+y¹⁰
b) (2+3√5)²=4+12√5+45=49+12√5
c) (4-√3)(4+√3)=16-3