1.
A=18x-6
B=2x²+3x-15x-12=12x²-12x-12
C=6x²+10x+3x+5=6x²+13x+5
D=12x-16-18x²+24x=-18x²+36x-16
E=12x²+8x+9x+6+32x²-8x+24x-6=44x²+33x
F=x²+16x+64-(-5x²+18x-40x+144)=6x²+38x-80
G=28y²-35y+8y-10-(98y²+70y+28y-20)=-70y²-125y+10
2.
A=5,2(y+x)
B=3(x+18)
C=(x+5)(18+2)=(x+5)20
D=(4x+3)(3x+2+8x-2)=(4x+3)11x
E=(7y+2)(4y-5-14y+10)=(7y+2)(-10y+5)
F=(x+8)(x+8+5x-18)=(x+8)(6x-10)
