7a^2-30a=-8

Solution for 7a^2-30a=-8 equation:

Simplifying
7a2 + -30a = -8

Reorder the terms:
-30a + 7a2 = -8

Solving
-30a + 7a2 = -8

Solving for variable 'a'.

Reorder the terms:
8 + -30a + 7a2 = -8 + 8

Combine like terms: -8 + 8 = 0
8 + -30a + 7a2 = 0

Factor a trinomial.
(2 + -7a)(4 + -1a) = 0

Subproblem 1
Set the factor '(2 + -7a)' equal to zero and attempt to solve:

Simplifying
2 + -7a = 0

Solving
2 + -7a = 0

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

Add '-2' to each side of the equation.
2 + -2 + -7a = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -7a = 0 + -2
-7a = 0 + -2

Combine like terms: 0 + -2 = -2
-7a = -2

Divide each side by '-7'.
a = 0.2857142857

Simplifying
a = 0.2857142857
Subproblem 2
Set the factor '(4 + -1a)' equal to zero and attempt to solve:

Simplifying
4 + -1a = 0

Solving
4 + -1a = 0

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

Add '-4' to each side of the equation.
4 + -4 + -1a = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1a = 0 + -4
-1a = 0 + -4

Combine like terms: 0 + -4 = -4
-1a = -4

Divide each side by '-1'.
a = 4

Simplifying
a = 4
Solution
a = {0.2857142857, 4}