7x^2+18=45x

Solution for 7x^2+18=45x equation:

Simplifying
7x2 + 18 = 45x

Reorder the terms:
18 + 7x2 = 45x

Solving
18 + 7x2 = 45x

Solving for variable 'x'.

Reorder the terms:
18 + -45x + 7x2 = 45x + -45x

Combine like terms: 45x + -45x = 0
18 + -45x + 7x2 = 0

Factor a trinomial.
(3 + -7x)(6 + -1x) = 0

Subproblem 1
Set the factor '(3 + -7x)' equal to zero and attempt to solve:

Simplifying
3 + -7x = 0

Solving
3 + -7x = 0

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

Add '-3' to each side of the equation.
3 + -3 + -7x = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -7x = 0 + -3
-7x = 0 + -3

Combine like terms: 0 + -3 = -3
-7x = -3

Divide each side by '-7'.
x = 0.4285714286

Simplifying
x = 0.4285714286
Subproblem 2
Set the factor '(6 + -1x)' equal to zero and attempt to solve:

Simplifying
6 + -1x = 0

Solving
6 + -1x = 0

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

Add '-6' to each side of the equation.
6 + -6 + -1x = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -1x = 0 + -6
-1x = 0 + -6

Combine like terms: 0 + -6 = -6
-1x = -6

Divide each side by '-1'.
x = 6

Simplifying
x = 6
Solution
x = {0.4285714286, 6}