4x^2-3=x^2-x+7

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Solution for 4x^2-3=x^2-x+7 equation:


Simplifying
4x2 + -3 = x2 + -1x + 7

Reorder the terms:
-3 + 4x2 = x2 + -1x + 7

Reorder the terms:
-3 + 4x2 = 7 + -1x + x2

Solving
-3 + 4x2 = 7 + -1x + x2

Solving for variable 'x'.

Reorder the terms:
-3 + -7 + x + 4x2 + -1x2 = 7 + -1x + x2 + -7 + x + -1x2

Combine like terms: -3 + -7 = -10
-10 + x + 4x2 + -1x2 = 7 + -1x + x2 + -7 + x + -1x2

Combine like terms: 4x2 + -1x2 = 3x2
-10 + x + 3x2 = 7 + -1x + x2 + -7 + x + -1x2

Reorder the terms:
-10 + x + 3x2 = 7 + -7 + -1x + x + x2 + -1x2

Combine like terms: 7 + -7 = 0
-10 + x + 3x2 = 0 + -1x + x + x2 + -1x2
-10 + x + 3x2 = -1x + x + x2 + -1x2

Combine like terms: -1x + x = 0
-10 + x + 3x2 = 0 + x2 + -1x2
-10 + x + 3x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-10 + x + 3x2 = 0

Factor a trinomial.
(-2 + -1x)(5 + -3x) = 0

Subproblem 1

Set the factor '(-2 + -1x)' equal to zero and attempt to solve: Simplifying -2 + -1x = 0 Solving -2 + -1x = 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 + -1x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1x = 0 + 2 -1x = 0 + 2 Combine like terms: 0 + 2 = 2 -1x = 2 Divide each side by '-1'. x = -2 Simplifying x = -2

Subproblem 2

Set the factor '(5 + -3x)' equal to zero and attempt to solve: Simplifying 5 + -3x = 0 Solving 5 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3x = 0 + -5 -3x = 0 + -5 Combine like terms: 0 + -5 = -5 -3x = -5 Divide each side by '-3'. x = 1.666666667 Simplifying x = 1.666666667

Solution

x = {-2, 1.666666667}

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