100x^2-60x+9=121

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Solution for 100x^2-60x+9=121 equation:


Simplifying
100x2 + -60x + 9 = 121

Reorder the terms:
9 + -60x + 100x2 = 121

Solving
9 + -60x + 100x2 = 121

Solving for variable 'x'.

Reorder the terms:
9 + -121 + -60x + 100x2 = 121 + -121

Combine like terms: 9 + -121 = -112
-112 + -60x + 100x2 = 121 + -121

Combine like terms: 121 + -121 = 0
-112 + -60x + 100x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-28 + -15x + 25x2) = 0

Factor a trinomial.
4((-4 + -5x)(7 + -5x)) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(-4 + -5x)' equal to zero and attempt to solve: Simplifying -4 + -5x = 0 Solving -4 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -5x = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -5x = 0 + 4 -5x = 0 + 4 Combine like terms: 0 + 4 = 4 -5x = 4 Divide each side by '-5'. x = -0.8 Simplifying x = -0.8

Subproblem 2

Set the factor '(7 + -5x)' equal to zero and attempt to solve: Simplifying 7 + -5x = 0 Solving 7 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -5x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -5x = 0 + -7 -5x = 0 + -7 Combine like terms: 0 + -7 = -7 -5x = -7 Divide each side by '-5'. x = 1.4 Simplifying x = 1.4

Solution

x = {-0.8, 1.4}

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