0=(-2t+10)(8t+4)

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Solution for 0=(-2t+10)(8t+4) equation:


Simplifying
0 = (-2t + 10)(8t + 4)

Reorder the terms:
0 = (10 + -2t)(8t + 4)

Reorder the terms:
0 = (10 + -2t)(4 + 8t)

Multiply (10 + -2t) * (4 + 8t)
0 = (10(4 + 8t) + -2t * (4 + 8t))
0 = ((4 * 10 + 8t * 10) + -2t * (4 + 8t))
0 = ((40 + 80t) + -2t * (4 + 8t))
0 = (40 + 80t + (4 * -2t + 8t * -2t))
0 = (40 + 80t + (-8t + -16t2))

Combine like terms: 80t + -8t = 72t
0 = (40 + 72t + -16t2)

Solving
0 = 40 + 72t + -16t2

Solving for variable 't'.

Combine like terms: 0 + -40 = -40
-40 + -72t + 16t2 = 40 + 72t + -16t2 + -40 + -72t + 16t2

Reorder the terms:
-40 + -72t + 16t2 = 40 + -40 + 72t + -72t + -16t2 + 16t2

Combine like terms: 40 + -40 = 0
-40 + -72t + 16t2 = 0 + 72t + -72t + -16t2 + 16t2
-40 + -72t + 16t2 = 72t + -72t + -16t2 + 16t2

Combine like terms: 72t + -72t = 0
-40 + -72t + 16t2 = 0 + -16t2 + 16t2
-40 + -72t + 16t2 = -16t2 + 16t2

Combine like terms: -16t2 + 16t2 = 0
-40 + -72t + 16t2 = 0

Factor out the Greatest Common Factor (GCF), '8'.
8(-5 + -9t + 2t2) = 0

Factor a trinomial.
8((-1 + -2t)(5 + -1t)) = 0

Ignore the factor 8.

Subproblem 1

Set the factor '(-1 + -2t)' equal to zero and attempt to solve: Simplifying -1 + -2t = 0 Solving -1 + -2t = 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 + -2t = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -2t = 0 + 1 -2t = 0 + 1 Combine like terms: 0 + 1 = 1 -2t = 1 Divide each side by '-2'. t = -0.5 Simplifying t = -0.5

Subproblem 2

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

Solution

t = {-0.5, 5}

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