4x^2=36x+40

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Solution for 4x^2=36x+40 equation:


Simplifying
4x2 = 36x + 40

Reorder the terms:
4x2 = 40 + 36x

Solving
4x2 = 40 + 36x

Solving for variable 'x'.

Reorder the terms:
-40 + -36x + 4x2 = 40 + 36x + -40 + -36x

Reorder the terms:
-40 + -36x + 4x2 = 40 + -40 + 36x + -36x

Combine like terms: 40 + -40 = 0
-40 + -36x + 4x2 = 0 + 36x + -36x
-40 + -36x + 4x2 = 36x + -36x

Combine like terms: 36x + -36x = 0
-40 + -36x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-10 + -9x + x2) = 0

Factor a trinomial.
4((-1 + -1x)(10 + -1x)) = 0

Ignore the factor 4.

Subproblem 1

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

Subproblem 2

Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10

Solution

x = {-1, 10}

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