\(6(5p-9q)=30p-54q\)

\(-3(-6a+9)=18a-27\)

\(-5(2x+6y-8)=-10x-30y+40\)

\(-4(-5x+8)-3(-2x+7)=20x-32+6x-21=26x-53\)

\(8a(2a+9)=16a^2+72a\)

\(9+(-7p+5)=9-7p+5=-7p+14\)

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

\((-2a+3)(6b+9)=-12ab-18a+18b+27\)

\((3x-4)(8x-5)=24x^2-15x-32x+20=24x^2-47x+20\)

\((a-4)(a-8)=a^2-8a-4a+32=a^2-12a+32\)

\((-8a+7)+(-4a-3)=-8a+7-4a-3=-12a+4\)

\((-3x-6)-(5x+7)=-3x-6+-5x-7=-8x-13\)

\((p+7)(p-5)(p-3)=(p+7)(p^2-8p+15)=p^3-8p^2+15p+7p^2-56p+105=p^3-p^2-41p+105\)

\(x(x+2)(x+5)=x(x^2+7x+10)=x^3+7x^2+10x\)

\((a-7)^2=a^2-14a+49\)

\((-3a+9)^2=9a^2-54a+81\)

\((-2x-7y)^2=4x^2+28xy+49y^2\)

\((-6x-2y)(-6x+2y)=36x^2-4y^2\)

\((-6x-5)(-6x+5)=36x^2-25\)

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