\(-9(3x-5y)=-27x+45y\)

\(4(8x-7)=32x-28\)

\(6(7a+8b-2)=42a+48b-12\)

\(-2(-8a+9)+3(5a+6)=16a-18+15a+18=31a\)

\(-4p(5p-8)=-20p^2+32p\)

\(6+(-2a+9)=6-2a+9=-2a+15\)

\(9-(5x+3)=9-5x-3=-5x+6\)

\((-2p-8)(3q+4)=-6pq-8p-24q-32\)

\((3x-6)(2x+7)=6x^2+21x-12x-42=6x^2+9x-42\)

\((a+8)(a-9)=a^2-9a+8a-72=a^2-a-72\)

\((-4x+6)+(2x-8)=-4x+6+2x-8=-2x-2\)

\((4a-8)-(2a-7)=4a-8+-2a+7=2a-1\)

\((x-4)(x-3)(x-8)=(x-4)(x^2-11x+24)=x^3-11x^2+24x-4x^2+44x-96=x^3-15x^2+68x-96\)

\(a(a+5)(a+3)=a(a^2+8a+15)=a^3+8a^2+15a\)

\((p+3)^2=p^2+6p+9\)

\((3a-8)^2=9a^2-48a+64\)

\((6x+3y)^2=36x^2+36xy+9y^2\)

\((-7x-8y)(-7x+8y)=49x^2-64y^2\)

\((-5a-3)(-5a+3)=25a^2-9\)

\((x+2)(x-2)=x^2-4\)