0=-5t^2+30t+35

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Solution for 0=-5t^2+30t+35 equation:


Simplifying
0 = -5t2 + 30t + 35

Reorder the terms:
0 = 35 + 30t + -5t2

Solving
0 = 35 + 30t + -5t2

Solving for variable 't'.

Combine like terms: 0 + -35 = -35
-35 + -30t + 5t2 = 35 + 30t + -5t2 + -35 + -30t + 5t2

Reorder the terms:
-35 + -30t + 5t2 = 35 + -35 + 30t + -30t + -5t2 + 5t2

Combine like terms: 35 + -35 = 0
-35 + -30t + 5t2 = 0 + 30t + -30t + -5t2 + 5t2
-35 + -30t + 5t2 = 30t + -30t + -5t2 + 5t2

Combine like terms: 30t + -30t = 0
-35 + -30t + 5t2 = 0 + -5t2 + 5t2
-35 + -30t + 5t2 = -5t2 + 5t2

Combine like terms: -5t2 + 5t2 = 0
-35 + -30t + 5t2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-7 + -6t + t2) = 0

Factor a trinomial.
5((-1 + -1t)(7 + -1t)) = 0

Ignore the factor 5.

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -1t)' equal to zero and attempt to solve: Simplifying 7 + -1t = 0 Solving 7 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1t = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1t = 0 + -7 -1t = 0 + -7 Combine like terms: 0 + -7 = -7 -1t = -7 Divide each side by '-1'. t = 7 Simplifying t = 7

Solution

t = {-1, 7}

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