20x^2-87x+28=0

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Solution for 20x^2-87x+28=0 equation:


Simplifying
20x2 + -87x + 28 = 0

Reorder the terms:
28 + -87x + 20x2 = 0

Solving
28 + -87x + 20x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7 + -20x)(4 + -1x) = 0

Subproblem 1

Set the factor '(7 + -20x)' equal to zero and attempt to solve: Simplifying 7 + -20x = 0 Solving 7 + -20x = 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 + -20x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -20x = 0 + -7 -20x = 0 + -7 Combine like terms: 0 + -7 = -7 -20x = -7 Divide each side by '-20'. x = 0.35 Simplifying x = 0.35

Subproblem 2

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 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 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

Solution

x = {0.35, 4}

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