Х²+2ху+у²=(х+у)²= (х+у)(х+у)
m³-4m=m(m²-4)=m(m-2)(m+2)
<span>4ѵ2+ѵ50-ѵ18=4ѵ2+5ѵ2-3ѵ2=ѵ2(4+5-3)=6ѵ2
</span><span>ѵ3*(2ѵ3+ѵ12)= ѵ3*(2ѵ3+2ѵ3)=12
</span><span>(ѵ5-2)^2=5-4ѵ5+4</span>
<span>(ѵ3-ѵ2)(ѵ3+ѵ2<span>)=(3-2) ВСЕ ЧТО СПОМНИЛ
</span></span>
Х² -36>0
(x-6)(x+6)>0
x=6 x=-6
+ - +
----------- -6 ------------- 6 --------------
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x∈(-∞; -6) U (6; +∞)