8v^2+16v-57=7

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Solution for 8v^2+16v-57=7 equation:


Simplifying
8v2 + 16v + -57 = 7

Reorder the terms:
-57 + 16v + 8v2 = 7

Solving
-57 + 16v + 8v2 = 7

Solving for variable 'v'.

Reorder the terms:
-57 + -7 + 16v + 8v2 = 7 + -7

Combine like terms: -57 + -7 = -64
-64 + 16v + 8v2 = 7 + -7

Combine like terms: 7 + -7 = 0
-64 + 16v + 8v2 = 0

Factor out the Greatest Common Factor (GCF), '8'.
8(-8 + 2v + v2) = 0

Factor a trinomial.
8((-4 + -1v)(2 + -1v)) = 0

Ignore the factor 8.

Subproblem 1

Set the factor '(-4 + -1v)' equal to zero and attempt to solve: Simplifying -4 + -1v = 0 Solving -4 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1v = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1v = 0 + 4 -1v = 0 + 4 Combine like terms: 0 + 4 = 4 -1v = 4 Divide each side by '-1'. v = -4 Simplifying v = -4

Subproblem 2

Set the factor '(2 + -1v)' equal to zero and attempt to solve: Simplifying 2 + -1v = 0 Solving 2 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1v = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1v = 0 + -2 -1v = 0 + -2 Combine like terms: 0 + -2 = -2 -1v = -2 Divide each side by '-1'. v = 2 Simplifying v = 2

Solution

v = {-4, 2}

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