Question

-2x(1-x)+(x-3)(x-1) решить срочно

Answer 1

-2x+2x^2+x^2-x-3x+3= 3x^2-6x+3=3(x^2-2x+1)= 3(x-1)^2

Answer 2

-2x(1-x)+(x-3)(x-1)
-2x(1-x)+(x-3)(-(1-x))
-2x(1-x)-(x-3)(1-x)
-(1-x)(2x+(x-3))
-(1-x)(2x+x-3)
-(1-x)(3x-3)
-(1-x)3(x-1)
-3(1-x)(x-1)