7x^2=12+25x

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Solution for 7x^2=12+25x equation:


Simplifying
7x2 = 12 + 25x

Solving
7x2 = 12 + 25x

Solving for variable 'x'.

Reorder the terms:
-12 + -25x + 7x2 = 12 + 25x + -12 + -25x

Reorder the terms:
-12 + -25x + 7x2 = 12 + -12 + 25x + -25x

Combine like terms: 12 + -12 = 0
-12 + -25x + 7x2 = 0 + 25x + -25x
-12 + -25x + 7x2 = 25x + -25x

Combine like terms: 25x + -25x = 0
-12 + -25x + 7x2 = 0

Factor a trinomial.
(-3 + -7x)(4 + -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 '(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 = {-0.4285714286, 4}

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