7x^2+46x-28=-7

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Solution for 7x^2+46x-28=-7 equation:


Simplifying
7x2 + 46x + -28 = -7

Reorder the terms:
-28 + 46x + 7x2 = -7

Solving
-28 + 46x + 7x2 = -7

Solving for variable 'x'.

Reorder the terms:
-28 + 7 + 46x + 7x2 = -7 + 7

Combine like terms: -28 + 7 = -21
-21 + 46x + 7x2 = -7 + 7

Combine like terms: -7 + 7 = 0
-21 + 46x + 7x2 = 0

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

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve: Simplifying -7 + -1x = 0 Solving -7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 0 + 7 -1x = 0 + 7 Combine like terms: 0 + 7 = 7 -1x = 7 Divide each side by '-1'. x = -7 Simplifying x = -7

Subproblem 2

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

Solution

x = {-7, 0.4285714286}

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