-98=-x^2+7x

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Solution for -98=-x^2+7x equation:


Simplifying
-98 = -1x2 + 7x

Reorder the terms:
-98 = 7x + -1x2

Solving
-98 = 7x + -1x2

Solving for variable 'x'.

Reorder the terms:
-98 + -7x + x2 = 7x + -7x + -1x2 + x2

Combine like terms: 7x + -7x = 0
-98 + -7x + x2 = 0 + -1x2 + x2
-98 + -7x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
-98 + -7x + x2 = 0

Factor a trinomial.
(-7 + -1x)(14 + -1x) = 0

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve: Simplifying -7 + -1x = 0 Solving -7 + -1x = 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 + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 0 + 7 -1x = 0 + 7 Combine like terms: 0 + 7 = 7 -1x = 7 Divide each side by '-1'. x = -7 Simplifying x = -7

Subproblem 2

Set the factor '(14 + -1x)' equal to zero and attempt to solve: Simplifying 14 + -1x = 0 Solving 14 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-14' to each side of the equation. 14 + -14 + -1x = 0 + -14 Combine like terms: 14 + -14 = 0 0 + -1x = 0 + -14 -1x = 0 + -14 Combine like terms: 0 + -14 = -14 -1x = -14 Divide each side by '-1'. x = 14 Simplifying x = 14

Solution

x = {-7, 14}

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