4x^2=7x+36

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Solution for 4x^2=7x+36 equation:


Simplifying
4x2 = 7x + 36

Reorder the terms:
4x2 = 36 + 7x

Solving
4x2 = 36 + 7x

Solving for variable 'x'.

Reorder the terms:
-36 + -7x + 4x2 = 36 + 7x + -36 + -7x

Reorder the terms:
-36 + -7x + 4x2 = 36 + -36 + 7x + -7x

Combine like terms: 36 + -36 = 0
-36 + -7x + 4x2 = 0 + 7x + -7x
-36 + -7x + 4x2 = 7x + -7x

Combine like terms: 7x + -7x = 0
-36 + -7x + 4x2 = 0

Factor a trinomial.
(-9 + -4x)(4 + -1x) = 0

Subproblem 1

Set the factor '(-9 + -4x)' equal to zero and attempt to solve: Simplifying -9 + -4x = 0 Solving -9 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -4x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -4x = 0 + 9 -4x = 0 + 9 Combine like terms: 0 + 9 = 9 -4x = 9 Divide each side by '-4'. x = -2.25 Simplifying x = -2.25

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 = {-2.25, 4}

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