Question

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

(3a3 − 5b3) +{ }a3 +{ } b3 = (a3 + b3).

Answer 1

3a^3-5b^3+xa^3+yb^3=1a^3+1b^3

3z-5v+xz+yv=z+v
3z+xz+yv-5v=1z+v

3z+xz=1z

3+x=1

x=-2

yv-5v=1v

y-5=1

y=6


(3a^3-5b^3)+ -2 a^3 +6 b^3=(a^3+b^3)