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Simplifying (7x + 9)(6x + -7) = 0 Reorder the terms: (9 + 7x)(6x + -7) = 0 Reorder the terms: (9 + 7x)(-7 + 6x) = 0 Multiply (9 + 7x) * (-7 + 6x) (9(-7 + 6x) + 7x * (-7 + 6x)) = 0 ((-7 * 9 + 6x * 9) + 7x * (-7 + 6x)) = 0 ((-63 + 54x) + 7x * (-7 + 6x)) = 0 (-63 + 54x + (-7 * 7x + 6x * 7x)) = 0 (-63 + 54x + (-49x + 42x2)) = 0 Combine like terms: 54x + -49x = 5x (-63 + 5x + 42x2) = 0 Solving -63 + 5x + 42x2 = 0 Solving for variable 'x'. Factor a trinomial. (-9 + -7x)(7 + -6x) = 0Subproblem 1
Set the factor '(-9 + -7x)' equal to zero and attempt to solve: Simplifying -9 + -7x = 0 Solving -9 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -7x = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -7x = 0 + 9 -7x = 0 + 9 Combine like terms: 0 + 9 = 9 -7x = 9 Divide each side by '-7'. x = -1.285714286 Simplifying x = -1.285714286Subproblem 2
Set the factor '(7 + -6x)' equal to zero and attempt to solve: Simplifying 7 + -6x = 0 Solving 7 + -6x = 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 + -6x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -6x = 0 + -7 -6x = 0 + -7 Combine like terms: 0 + -7 = -7 -6x = -7 Divide each side by '-6'. x = 1.166666667 Simplifying x = 1.166666667Solution
x = {-1.285714286, 1.166666667}
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