8x^2=26x+15

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Solution for 8x^2=26x+15 equation:


Simplifying
8x2 = 26x + 15

Reorder the terms:
8x2 = 15 + 26x

Solving
8x2 = 15 + 26x

Solving for variable 'x'.

Reorder the terms:
-15 + -26x + 8x2 = 15 + 26x + -15 + -26x

Reorder the terms:
-15 + -26x + 8x2 = 15 + -15 + 26x + -26x

Combine like terms: 15 + -15 = 0
-15 + -26x + 8x2 = 0 + 26x + -26x
-15 + -26x + 8x2 = 26x + -26x

Combine like terms: 26x + -26x = 0
-15 + -26x + 8x2 = 0

Factor a trinomial.
(-1 + -2x)(15 + -4x) = 0

Subproblem 1

Set the factor '(-1 + -2x)' equal to zero and attempt to solve: Simplifying -1 + -2x = 0 Solving -1 + -2x = 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 + -2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2x = 0 + 1 -2x = 0 + 1 Combine like terms: 0 + 1 = 1 -2x = 1 Divide each side by '-2'. x = -0.5 Simplifying x = -0.5

Subproblem 2

Set the factor '(15 + -4x)' equal to zero and attempt to solve: Simplifying 15 + -4x = 0 Solving 15 + -4x = 0 Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -4x = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -4x = 0 + -15 -4x = 0 + -15 Combine like terms: 0 + -15 = -15 -4x = -15 Divide each side by '-4'. x = 3.75 Simplifying x = 3.75

Solution

x = {-0.5, 3.75}

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