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Simplifying 49x2 + -420x + 900 = 0 Reorder the terms: 900 + -420x + 49x2 = 0 Solving 900 + -420x + 49x2 = 0 Solving for variable 'x'. Factor a trinomial. (30 + -7x)(30 + -7x) = 0Subproblem 1
Set the factor '(30 + -7x)' equal to zero and attempt to solve: Simplifying 30 + -7x = 0 Solving 30 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + -7x = 0 + -30 Combine like terms: 30 + -30 = 0 0 + -7x = 0 + -30 -7x = 0 + -30 Combine like terms: 0 + -30 = -30 -7x = -30 Divide each side by '-7'. x = 4.285714286 Simplifying x = 4.285714286Subproblem 2
Set the factor '(30 + -7x)' equal to zero and attempt to solve: Simplifying 30 + -7x = 0 Solving 30 + -7x = 0 Move all terms containing x to the left, all other terms to the right. Add '-30' to each side of the equation. 30 + -30 + -7x = 0 + -30 Combine like terms: 30 + -30 = 0 0 + -7x = 0 + -30 -7x = 0 + -30 Combine like terms: 0 + -30 = -30 -7x = -30 Divide each side by '-7'. x = 4.285714286 Simplifying x = 4.285714286Solution
x = {4.285714286, 4.285714286}
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