(9x^2-5x-6)+(5x^2-8x-4)=

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Solution for (9x^2-5x-6)+(5x^2-8x-4)= equation:


Simplifying
(9x2 + -5x + -6) + (5x2 + -8x + -4) = 0

Reorder the terms:
(-6 + -5x + 9x2) + (5x2 + -8x + -4) = 0

Remove parenthesis around (-6 + -5x + 9x2)
-6 + -5x + 9x2 + (5x2 + -8x + -4) = 0

Reorder the terms:
-6 + -5x + 9x2 + (-4 + -8x + 5x2) = 0

Remove parenthesis around (-4 + -8x + 5x2)
-6 + -5x + 9x2 + -4 + -8x + 5x2 = 0

Reorder the terms:
-6 + -4 + -5x + -8x + 9x2 + 5x2 = 0

Combine like terms: -6 + -4 = -10
-10 + -5x + -8x + 9x2 + 5x2 = 0

Combine like terms: -5x + -8x = -13x
-10 + -13x + 9x2 + 5x2 = 0

Combine like terms: 9x2 + 5x2 = 14x2
-10 + -13x + 14x2 = 0

Solving
-10 + -13x + 14x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -2x)(10 + -7x) = 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 '(10 + -7x)' equal to zero and attempt to solve: Simplifying 10 + -7x = 0 Solving 10 + -7x = 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 + -7x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -7x = 0 + -10 -7x = 0 + -10 Combine like terms: 0 + -10 = -10 -7x = -10 Divide each side by '-7'. x = 1.428571429 Simplifying x = 1.428571429

Solution

x = {-0.5, 1.428571429}

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