(4q+5)(3q-5)=

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Solution for (4q+5)(3q-5)= equation:


Simplifying
(4q + 5)(3q + -5) = 0

Reorder the terms:
(5 + 4q)(3q + -5) = 0

Reorder the terms:
(5 + 4q)(-5 + 3q) = 0

Multiply (5 + 4q) * (-5 + 3q)
(5(-5 + 3q) + 4q * (-5 + 3q)) = 0
((-5 * 5 + 3q * 5) + 4q * (-5 + 3q)) = 0
((-25 + 15q) + 4q * (-5 + 3q)) = 0
(-25 + 15q + (-5 * 4q + 3q * 4q)) = 0
(-25 + 15q + (-20q + 12q2)) = 0

Combine like terms: 15q + -20q = -5q
(-25 + -5q + 12q2) = 0

Solving
-25 + -5q + 12q2 = 0

Solving for variable 'q'.

Factor a trinomial.
(-5 + -4q)(5 + -3q) = 0

Subproblem 1

Set the factor '(-5 + -4q)' equal to zero and attempt to solve: Simplifying -5 + -4q = 0 Solving -5 + -4q = 0 Move all terms containing q to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + -4q = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -4q = 0 + 5 -4q = 0 + 5 Combine like terms: 0 + 5 = 5 -4q = 5 Divide each side by '-4'. q = -1.25 Simplifying q = -1.25

Subproblem 2

Set the factor '(5 + -3q)' equal to zero and attempt to solve: Simplifying 5 + -3q = 0 Solving 5 + -3q = 0 Move all terms containing q to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3q = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3q = 0 + -5 -3q = 0 + -5 Combine like terms: 0 + -5 = -5 -3q = -5 Divide each side by '-3'. q = 1.666666667 Simplifying q = 1.666666667

Solution

q = {-1.25, 1.666666667}

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