Question

Evaluate the following rational equations below, and identify which rational equation is transformable to a quadratic equation. Cross-out the rational equation transformable to a quadratic equation.

m+7 18
___ = __
9 4m

Answer 1

• 2m^2 + 14m - 81 = 0

Explanation:

It looks like

• (m + 7)/9 = 18/4m

Cross-multiplication:

• 4m(m+7) = 9*18
• 2m(m+7) = 9*9
• 2m^2 + 14m = 81
• 2m^2 + 14m - 81 = 0

Here is the quadratic equation