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Dau coroana, multumesc anticipat!

Dau Coroana Multumesc Anticipat class=

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a) (2√3+x)² =12+4√3x+x²
b)(3√3x+2√5)²=27x²+12√15x+20
c)(1/2*x+3)²= 1/4*x²+3x+9
d) (3-2√3)²= 9-12√3+12=21-12√3
e)(2√5x-3√2x)²=20x²-12√10x²+18x²= 38x²-12√10x²
f)(5√2x - 4√3y)²=50x²- 40√6xy+48y²

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