5r^2-25-70=0

Solution for 5r^2-25-70=0 equation:

Simplifying
5r2 + -25 + -70 = 0

Reorder the terms:
-25 + -70 + 5r2 = 0

Combine like terms: -25 + -70 = -95
-95 + 5r2 = 0

Solving
-95 + 5r2 = 0

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '95' to each side of the equation.
-95 + 95 + 5r2 = 0 + 95

Combine like terms: -95 + 95 = 0
0 + 5r2 = 0 + 95
5r2 = 0 + 95

Combine like terms: 0 + 95 = 95
5r2 = 95

Divide each side by '5'.
r2 = 19

Simplifying
r2 = 19

Take the square root of each side:
r = {-4.358898944, 4.358898944}