Question

Solve each equation using the quadratic formula: 5r^2=80, 9n^2=4+7n

Answer 1

\[x=-b \pm \frac{ \sqrt{b ^{2}-4ac} }{ 2a }\]

Answer 2

5r^2 +0r -80
a b c

Answer 3

\[x=-0\pm \frac{ \sqrt{0^2-4(5)(-80)} }{ 2(5) }\]

Answer 4

Thank You!

Answer 5

You are welcome! I hope it makes sense!