7x+3x^2-40=26

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Solution for 7x+3x^2-40=26 equation:


Simplifying
7x + 3x2 + -40 = 26

Reorder the terms:
-40 + 7x + 3x2 = 26

Solving
-40 + 7x + 3x2 = 26

Solving for variable 'x'.

Reorder the terms:
-40 + -26 + 7x + 3x2 = 26 + -26

Combine like terms: -40 + -26 = -66
-66 + 7x + 3x2 = 26 + -26

Combine like terms: 26 + -26 = 0
-66 + 7x + 3x2 = 0

Factor a trinomial.
(-6 + -1x)(11 + -3x) = 0

Subproblem 1

Set the factor '(-6 + -1x)' equal to zero and attempt to solve: Simplifying -6 + -1x = 0 Solving -6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1x = 0 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 0 + 6 -1x = 0 + 6 Combine like terms: 0 + 6 = 6 -1x = 6 Divide each side by '-1'. x = -6 Simplifying x = -6

Subproblem 2

Set the factor '(11 + -3x)' equal to zero and attempt to solve: Simplifying 11 + -3x = 0 Solving 11 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + -3x = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -3x = 0 + -11 -3x = 0 + -11 Combine like terms: 0 + -11 = -11 -3x = -11 Divide each side by '-3'. x = 3.666666667 Simplifying x = 3.666666667

Solution

x = {-6, 3.666666667}

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