Question

Очень срочно! упростите выражение (4x-3)(3x+2)-(1-2x)(5-3x)

Answer 1

$(4x-3)(3x+2)-(1-2x)(5-3x) = \\ =12x^{2}+8x-9x-6-(5-3x-10x+6x^{2})=\\ =12x^{2}+8x-9x-6-5+3x+10x-6x^{2}=\\ =6x^{2}+12x-11=6x(x+2)-11$