<span>1)16x^2-9y^2+4x-3y</span>
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10с-5=1
10с=1+5
с=6/10
с=3/5
A)11√5+√500-√180=11√5+10√5-6√5=15√5
в)(√6+√3)^2= 6+2√18+3=9+6√2
б)3√2*(5√2-√32 ) =15*√4-3√64=15*2-3*8=30-24=6
г)(√3-√8)*(√8+√3)=3-8=-5
См. вложение
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