\(-6(4x-7y)=-24x+42y\)

\(9+(-2p+5)=9-2p+5=-2p+14\)

\(4-(-5a+6)=4+5a-6=5a-2\)

\(7(5a+4)=35a+28\)

\(2(-9x-5)-4(3x-7)=-18x-10-12x+28=-30x+18\)

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

\((6p+7)+(-3p+4)=6p+7-3p+4=3p+11\)

\((9x-4)-(7x-8)=9x-4+-7x+8=2x+4\)

\(-5(4a+6b-8)=-20a-30b+40\)

\((-7p+5)(6q-3)=-42pq+21p+30q-15\)

\((-3x+5)(4x+9)=-12x^2-27x+20x+45=-12x^2-7x+45\)

\((x+3)(x+2)=x^2+2x+3x+6=x^2+5x+6\)

\((a+4)^2=a^2+8a+16\)

\((2p+3)^2=4p^2+12p+9\)

\((2a+9b)^2=4a^2+36ab+81b^2\)

\((p+6)(p-9)(p+3)=(p+6)(p^2-6p-27)=p^3-6p^2-27p+6p^2-36p-162=p^3-63p-162\)

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

\((3x-2y)(3x+2y)=9x^2-4y^2\)

\((-7x+5)(-7x-5)=49x^2-25\)

\((a+4)(a-4)=a^2-16\)