\(-8(-4a+2b)=32a-16b\)

\(-5+(2x+4)=-5+2x+4=2x-1\)

\(-9-(-6p+8)=-9+6p-8=6p-17\)

\(8(-7a-6)=-56a-48\)

\(3(8x-7)-4(-6x-5)=24x-21+24x+20=48x-1\)

\(-7a(-2a-8)=14a^2+56a\)

\((8a+6)+(-7a-4)=8a+6-7a-4=a+2\)

\((3x-9)-(-5x-4)=3x-9+5x+4=8x-5\)

\(-5(-3x+4y+7)=15x-20y-35\)

\((-7a-8)(9b+5)=-63ab-35a-72b-40\)

\((3a+7)(-5a+4)=-15a^2+12a-35a+28=-15a^2-23a+28\)

\((p-6)(p-5)=p^2-5p-6p+30=p^2-11p+30\)

\((x-8)^2=x^2-16x+64\)

\((8p-4)^2=64p^2-64p+16\)

\((-2a+3b)^2=4a^2-12ab+9b^2\)

\((x-5)(x-8)(x-3)=(x-5)(x^2-11x+24)=x^3-11x^2+24x-5x^2+55x-120=x^3-16x^2+79x-120\)

\(a(a-2)(a+4)=a(a^2+2a-8)=a^3+2a^2-8a\)

\((3x+8y)(3x-8y)=9x^2-64y^2\)

\((5a+2)(5a-2)=25a^2-4\)

\((p+7)(p-7)=p^2-49\)