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Simplifying (1 + -2x)(5 + -7x) = 0 Multiply (1 + -2x) * (5 + -7x) (1(5 + -7x) + -2x * (5 + -7x)) = 0 ((5 * 1 + -7x * 1) + -2x * (5 + -7x)) = 0 ((5 + -7x) + -2x * (5 + -7x)) = 0 (5 + -7x + (5 * -2x + -7x * -2x)) = 0 (5 + -7x + (-10x + 14x2)) = 0 Combine like terms: -7x + -10x = -17x (5 + -17x + 14x2) = 0 Solving 5 + -17x + 14x2 = 0 Solving for variable 'x'. Factor a trinomial. (1 + -2x)(5 + -7x) = 0Subproblem 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 = 0.5Subproblem 2
Set the factor '(5 + -7x)' equal to zero and attempt to solve: Simplifying 5 + -7x = 0 Solving 5 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -7x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -7x = 0 + -5 -7x = 0 + -5 Combine like terms: 0 + -5 = -5 -7x = -5 Divide each side by '-7'. x = 0.7142857143 Simplifying x = 0.7142857143Solution
x = {0.5, 0.7142857143}
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