2t^2+7t=15

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Solution for 2t^2+7t=15 equation:


Simplifying
2t2 + 7t = 15

Reorder the terms:
7t + 2t2 = 15

Solving
7t + 2t2 = 15

Solving for variable 't'.

Reorder the terms:
-15 + 7t + 2t2 = 15 + -15

Combine like terms: 15 + -15 = 0
-15 + 7t + 2t2 = 0

Factor a trinomial.
(-5 + -1t)(3 + -2t) = 0

Subproblem 1

Set the factor '(-5 + -1t)' equal to zero and attempt to solve: Simplifying -5 + -1t = 0 Solving -5 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -1t = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1t = 0 + 5 -1t = 0 + 5 Combine like terms: 0 + 5 = 5 -1t = 5 Divide each side by '-1'. t = -5 Simplifying t = -5

Subproblem 2

Set the factor '(3 + -2t)' equal to zero and attempt to solve: Simplifying 3 + -2t = 0 Solving 3 + -2t = 0 Move all terms containing t to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -2t = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2t = 0 + -3 -2t = 0 + -3 Combine like terms: 0 + -3 = -3 -2t = -3 Divide each side by '-2'. t = 1.5 Simplifying t = 1.5

Solution

t = {-5, 1.5}

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