(3x+2)(5x+7)=

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Solution for (3x+2)(5x+7)= equation:


Simplifying
(3x + 2)(5x + 7) = 0

Reorder the terms:
(2 + 3x)(5x + 7) = 0

Reorder the terms:
(2 + 3x)(7 + 5x) = 0

Multiply (2 + 3x) * (7 + 5x)
(2(7 + 5x) + 3x * (7 + 5x)) = 0
((7 * 2 + 5x * 2) + 3x * (7 + 5x)) = 0
((14 + 10x) + 3x * (7 + 5x)) = 0
(14 + 10x + (7 * 3x + 5x * 3x)) = 0
(14 + 10x + (21x + 15x2)) = 0

Combine like terms: 10x + 21x = 31x
(14 + 31x + 15x2) = 0

Solving
14 + 31x + 15x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(7 + 5x)(2 + 3x) = 0

Subproblem 1

Set the factor '(7 + 5x)' equal to zero and attempt to solve: Simplifying 7 + 5x = 0 Solving 7 + 5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 5x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 5x = 0 + -7 5x = 0 + -7 Combine like terms: 0 + -7 = -7 5x = -7 Divide each side by '5'. x = -1.4 Simplifying x = -1.4

Subproblem 2

Set the factor '(2 + 3x)' equal to zero and attempt to solve: Simplifying 2 + 3x = 0 Solving 2 + 3x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + 3x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 3x = 0 + -2 3x = 0 + -2 Combine like terms: 0 + -2 = -2 3x = -2 Divide each side by '3'. x = -0.6666666667 Simplifying x = -0.6666666667

Solution

x = {-1.4, -0.6666666667}

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