4x^2-42=17x

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Solution for 4x^2-42=17x equation:


Simplifying
4x2 + -42 = 17x

Reorder the terms:
-42 + 4x2 = 17x

Solving
-42 + 4x2 = 17x

Solving for variable 'x'.

Reorder the terms:
-42 + -17x + 4x2 = 17x + -17x

Combine like terms: 17x + -17x = 0
-42 + -17x + 4x2 = 0

Factor a trinomial.
(-7 + -4x)(6 + -1x) = 0

Subproblem 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 = -1.75

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {-1.75, 6}

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