(x^2-9x+8)+3(2x^2+x-3)=

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Solution for (x^2-9x+8)+3(2x^2+x-3)= equation:


Simplifying
(x2 + -9x + 8) + 3(2x2 + x + -3) = 0

Reorder the terms:
(8 + -9x + x2) + 3(2x2 + x + -3) = 0

Remove parenthesis around (8 + -9x + x2)
8 + -9x + x2 + 3(2x2 + x + -3) = 0

Reorder the terms:
8 + -9x + x2 + 3(-3 + x + 2x2) = 0
8 + -9x + x2 + (-3 * 3 + x * 3 + 2x2 * 3) = 0
8 + -9x + x2 + (-9 + 3x + 6x2) = 0

Reorder the terms:
8 + -9 + -9x + 3x + x2 + 6x2 = 0

Combine like terms: 8 + -9 = -1
-1 + -9x + 3x + x2 + 6x2 = 0

Combine like terms: -9x + 3x = -6x
-1 + -6x + x2 + 6x2 = 0

Combine like terms: x2 + 6x2 = 7x2
-1 + -6x + 7x2 = 0

Solving
-1 + -6x + 7x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -7x)(1 + -1x) = 0

Subproblem 1

Set the factor '(-1 + -7x)' equal to zero and attempt to solve: Simplifying -1 + -7x = 0 Solving -1 + -7x = 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 + -7x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -7x = 0 + 1 -7x = 0 + 1 Combine like terms: 0 + 1 = 1 -7x = 1 Divide each side by '-7'. x = -0.1428571429 Simplifying x = -0.1428571429

Subproblem 2

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

Solution

x = {-0.1428571429, 1}

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