2w^2+5w=7

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Solution for 2w^2+5w=7 equation:


Simplifying
2w2 + 5w = 7

Reorder the terms:
5w + 2w2 = 7

Solving
5w + 2w2 = 7

Solving for variable 'w'.

Reorder the terms:
-7 + 5w + 2w2 = 7 + -7

Combine like terms: 7 + -7 = 0
-7 + 5w + 2w2 = 0

Factor a trinomial.
(-7 + -2w)(1 + -1w) = 0

Subproblem 1

Set the factor '(-7 + -2w)' equal to zero and attempt to solve: Simplifying -7 + -2w = 0 Solving -7 + -2w = 0 Move all terms containing w to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -2w = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -2w = 0 + 7 -2w = 0 + 7 Combine like terms: 0 + 7 = 7 -2w = 7 Divide each side by '-2'. w = -3.5 Simplifying w = -3.5

Subproblem 2

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

Solution

w = {-3.5, 1}

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