(2t+3)(9t-7)=

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Solution for (2t+3)(9t-7)= equation:


Simplifying
(2t + 3)(9t + -7) = 0

Reorder the terms:
(3 + 2t)(9t + -7) = 0

Reorder the terms:
(3 + 2t)(-7 + 9t) = 0

Multiply (3 + 2t) * (-7 + 9t)
(3(-7 + 9t) + 2t * (-7 + 9t)) = 0
((-7 * 3 + 9t * 3) + 2t * (-7 + 9t)) = 0
((-21 + 27t) + 2t * (-7 + 9t)) = 0
(-21 + 27t + (-7 * 2t + 9t * 2t)) = 0
(-21 + 27t + (-14t + 18t2)) = 0

Combine like terms: 27t + -14t = 13t
(-21 + 13t + 18t2) = 0

Solving
-21 + 13t + 18t2 = 0

Solving for variable 't'.

Factor a trinomial.
(-3 + -2t)(7 + -9t) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -9t)' equal to zero and attempt to solve: Simplifying 7 + -9t = 0 Solving 7 + -9t = 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 + -9t = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -9t = 0 + -7 -9t = 0 + -7 Combine like terms: 0 + -7 = -7 -9t = -7 Divide each side by '-9'. t = 0.7777777778 Simplifying t = 0.7777777778

Solution

t = {-1.5, 0.7777777778}

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