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Simplifying 4x2 = 25x + 56 Reorder the terms: 4x2 = 56 + 25x Solving 4x2 = 56 + 25x Solving for variable 'x'. Reorder the terms: -56 + -25x + 4x2 = 56 + 25x + -56 + -25x Reorder the terms: -56 + -25x + 4x2 = 56 + -56 + 25x + -25x Combine like terms: 56 + -56 = 0 -56 + -25x + 4x2 = 0 + 25x + -25x -56 + -25x + 4x2 = 25x + -25x Combine like terms: 25x + -25x = 0 -56 + -25x + 4x2 = 0 Factor a trinomial. (-7 + -4x)(8 + -1x) = 0Subproblem 1
Set the factor '(-7 + -4x)' equal to zero and attempt to solve: Simplifying -7 + -4x = 0 Solving -7 + -4x = 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 + -4x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -4x = 0 + 7 -4x = 0 + 7 Combine like terms: 0 + 7 = 7 -4x = 7 Divide each side by '-4'. x = -1.75 Simplifying x = -1.75Subproblem 2
Set the factor '(8 + -1x)' equal to zero and attempt to solve: Simplifying 8 + -1x = 0 Solving 8 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1x = 0 + -8 -1x = 0 + -8 Combine like terms: 0 + -8 = -8 -1x = -8 Divide each side by '-1'. x = 8 Simplifying x = 8Solution
x = {-1.75, 8}
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