-16a^2+63a+4=0

Solution for -16a^2+63a+4=0 equation:

Simplifying
-16a2 + 63a + 4 = 0

Reorder the terms:
4 + 63a + -16a2 = 0

Solving
4 + 63a + -16a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(4 + -1a)(1 + 16a) = 0

Subproblem 1
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
Subproblem 2
Set the factor '(1 + 16a)' equal to zero and attempt to solve:

Simplifying
1 + 16a = 0

Solving
1 + 16a = 0

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

Add '-1' to each side of the equation.
1 + -1 + 16a = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 16a = 0 + -1
16a = 0 + -1

Combine like terms: 0 + -1 = -1
16a = -1

Divide each side by '16'.
a = -0.0625

Simplifying
a = -0.0625
Solution
a = {4, -0.0625}