7x^2=30x-8

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


Simplifying
7x2 = 30x + -8

Reorder the terms:
7x2 = -8 + 30x

Solving
7x2 = -8 + 30x

Solving for variable 'x'.

Reorder the terms:
8 + -30x + 7x2 = -8 + 30x + 8 + -30x

Reorder the terms:
8 + -30x + 7x2 = -8 + 8 + 30x + -30x

Combine like terms: -8 + 8 = 0
8 + -30x + 7x2 = 0 + 30x + -30x
8 + -30x + 7x2 = 30x + -30x

Combine like terms: 30x + -30x = 0
8 + -30x + 7x2 = 0

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

Subproblem 1

Set the factor '(2 + -7x)' equal to zero and attempt to solve: Simplifying 2 + -7x = 0 Solving 2 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7x = 0 + -2 -7x = 0 + -2 Combine like terms: 0 + -2 = -2 -7x = -2 Divide each side by '-7'. x = 0.2857142857 Simplifying x = 0.2857142857

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {0.2857142857, 4}

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