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2014-11-14T20:41:50+02:00
A) (2x^2+1)^2=4x^4+1+4x^2
b) (6x^3y^2+5x^2y)^2=36x^6y^4+25x^4y^2+30x^5y^3
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2014-11-14T20:52:56+02:00
a) (2x ² + 1 ) ²=(2x²)²+2*2x²*1+1²=4x⁴+4x²+1

b) (6x ³ y ² +5x ² y) ²=(6x³y²)²+2*6x³y²*5x²y+(5x²y)²=36x⁶y⁴+60x⁵y³+25x⁴y²

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