Question

9. The bank vault below is in the shape of a cube. Finds its volume(V = length*width oheight). You must show the set-up and all work.

Answer 1

V = l*w*h

= 3y^4 * 3y^4 * 3y^4

= 3*3 *3 y^(4+4+4)

= 27 y^12

10. 4y^7 * 4y^3

=16 y^(7+3)

16 y^10

4y^7 + 4y ^3

Factor out 4y^3 (Take out the greatest common factor)

4y^3(y^4+1)