\(-5(6x+2y)=-30x-10y\)

\(-3(2x-8)=-6x+24\)

\(-6(-3a-7b-4)=18a+42b+24\)

\(4(9p+6)+3(-5p-8)=36p+24-15p-24=21p\)

\(8a(-5a+7)=-40a^2+56a\)

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

\(3-(-2x+6)=3+2x-6=2x-3\)

\((6a+5)(-9b+2)=-54ab+12a-45b+10\)

\((-3p+2)(8p+4)=-24p^2-12p+16p+8=-24p^2+4p+8\)

\((a-7)(a+4)=a^2+4a-7a-28=a^2-3a-28\)

\((9x-6)+(2x-4)=9x-6+2x-4=11x-10\)

\((7x-3)-(2x+9)=7x-3+-2x-9=5x-12\)

\((p-3)(p+9)(p-6)=(p-3)(p^2+3p-54)=p^3+3p^2-54p-3p^2-9p+162=p^3-63p+162\)

\(a(a-8)(a-5)=a(a^2-13a+40)=a^3-13a^2+40a\)

\((a-9)^2=a^2-18a+81\)

\((-2x-9)^2=4x^2+36x+81\)

\((9x-4y)^2=81x^2-72xy+16y^2\)

\((-4x+7y)(-4x-7y)=16x^2-49y^2\)

\((-4x+7)(-4x-7)=16x^2-49\)

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