X^2(x-2)-36(x-2)=0
(x-2)(x^2-36)=0
(x-2)(x-6)(x+6)=0 , x1=2, X2=6, x3= -6
7a²-7=7(a-1)(a+1)
3b³-3b=3b(b-1)(b+1)
2x²-2xy²2x(x-y²)
-8a^5+8a³-2a=-2a(4a^4-4a²+1)
x-4y+x²-16y²=(x-4y)=(x-4y)(x+4y)=(x-4y)(1+x+4y)
ab^6-ab^4-b^6+b^4=ab^4(b²-1)-b^4(b²-1)=(b²-1)(ab^4-b^4)=
=b^4*(a-1)(b-1)(b+1)
(a-b)²=a²-2ab+b²
−12(0,1p−t)² =-12*(0,01p²-0,2pt+t²)= -0,12p²+2,4pt-12t²
-сх+2cy+3zc
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