(x-1)*(x+2) = 10
x^2+2x-x-2=10
x^2+x-2-10=0
x^2+x-12=0
D=12 - 4*1(-12)=49
x1=6/2=3
x2= -8/2=-4
Ответ : x1=3 , x2=-4
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(x-1)*(x+2) = 10
x^2+2x-x-2=10
x^2+x-2-10=0
x^2+x-12=0
D=12 - 4*1(-12)=49
x1=6/2=3
x2= -8/2=-4
Ответ : x1=3 , x2=-4