=(6x+9)+(4x^2-7)

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Solution for =(6x+9)+(4x^2-7) equation:


Simplifying
0 = (6x + 9) + (4x2 + -7)

Reorder the terms:
0 = (9 + 6x) + (4x2 + -7)

Remove parenthesis around (9 + 6x)
0 = 9 + 6x + (4x2 + -7)

Reorder the terms:
0 = 9 + 6x + (-7 + 4x2)

Remove parenthesis around (-7 + 4x2)
0 = 9 + 6x + -7 + 4x2

Reorder the terms:
0 = 9 + -7 + 6x + 4x2

Combine like terms: 9 + -7 = 2
0 = 2 + 6x + 4x2

Solving
0 = 2 + 6x + 4x2

Solving for variable 'x'.

Combine like terms: 0 + -2 = -2
-2 + -6x + -4x2 = 2 + 6x + 4x2 + -2 + -6x + -4x2

Reorder the terms:
-2 + -6x + -4x2 = 2 + -2 + 6x + -6x + 4x2 + -4x2

Combine like terms: 2 + -2 = 0
-2 + -6x + -4x2 = 0 + 6x + -6x + 4x2 + -4x2
-2 + -6x + -4x2 = 6x + -6x + 4x2 + -4x2

Combine like terms: 6x + -6x = 0
-2 + -6x + -4x2 = 0 + 4x2 + -4x2
-2 + -6x + -4x2 = 4x2 + -4x2

Combine like terms: 4x2 + -4x2 = 0
-2 + -6x + -4x2 = 0

Factor out the Greatest Common Factor (GCF), '-2'.
-2(1 + 3x + 2x2) = 0

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

Ignore the factor -2.

Subproblem 1

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 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 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Subproblem 2

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

Solution

x = {-1, -0.5}

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