Question 847352
{{{2q^3(-3q^4r)^2+ -4qr(5q^3r)^2(q^4)}}}



{{{2q^3*(-3)^2*(q^4)^2*(r)^2-4*q*r*(5)^2*(q^3)^2*(r)^2*(q^4)}}}



{{{2q^3*(-3)^2*q^(4*2)*(r)^2-4*q*r*(5)^2*q^(3*2)*(r)^2*(q^4)}}}



{{{2q^3*9*q^8*(r)^2-4*q*r*25*q^6*(r)^2*(q^4)}}}



{{{(2*9)*(q^3*q^8)*r^2+(-4*25)*(q*q^6*q^4)*(r*r^2)}}}



{{{18*q^(3+8)*r^2-100*q^(1+6+4)*r^(1+2)}}}



{{{18*q^(11)*r^2-100*q^(11)*r^(3)}}}



{{{2q^(11)r^2(9 - 50r)}}} Note: this factoring step is optional (some teachers want this, others don't, so ask your teacher if this is what is wanted)