t*t-3t=28

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Solution for t*t-3t=28 equation:


Simplifying
t * t + -3t = 28

Multiply t * t
t2 + -3t = 28

Reorder the terms:
-3t + t2 = 28

Solving
-3t + t2 = 28

Solving for variable 't'.

Reorder the terms:
-28 + -3t + t2 = 28 + -28

Combine like terms: 28 + -28 = 0
-28 + -3t + t2 = 0

Factor a trinomial.
(-4 + -1t)(7 + -1t) = 0

Subproblem 1

Set the factor '(-4 + -1t)' equal to zero and attempt to solve: Simplifying -4 + -1t = 0 Solving -4 + -1t = 0 Move all terms containing t to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1t = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1t = 0 + 4 -1t = 0 + 4 Combine like terms: 0 + 4 = 4 -1t = 4 Divide each side by '-1'. t = -4 Simplifying t = -4

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 = {-4, 7}

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