I have completed the 1st one and have attached it.
The answer is 35 cm I think that’s right not certain
I believe it is GCF because 9v^3 can be factored out of the expression, becoming:
9v^3 (4 - 3v^2)
9v^3 (-3v^2 + 4)
The quadratic in parentheses can be solved, but with the quadratic equation or by graphing.
Just divide 450 by 50 and your answer is 9 in
