(2x+6)(5x+4)=

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Solution for (2x+6)(5x+4)= equation:


Simplifying
(2x + 6)(5x + 4) = 0

Reorder the terms:
(6 + 2x)(5x + 4) = 0

Reorder the terms:
(6 + 2x)(4 + 5x) = 0

Multiply (6 + 2x) * (4 + 5x)
(6(4 + 5x) + 2x * (4 + 5x)) = 0
((4 * 6 + 5x * 6) + 2x * (4 + 5x)) = 0
((24 + 30x) + 2x * (4 + 5x)) = 0
(24 + 30x + (4 * 2x + 5x * 2x)) = 0
(24 + 30x + (8x + 10x2)) = 0

Combine like terms: 30x + 8x = 38x
(24 + 38x + 10x2) = 0

Solving
24 + 38x + 10x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(12 + 19x + 5x2) = 0

Factor a trinomial.
2((3 + x)(4 + 5x)) = 0

Ignore the factor 2.

Subproblem 1

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

Subproblem 2

Set the factor '(4 + 5x)' equal to zero and attempt to solve: Simplifying 4 + 5x = 0 Solving 4 + 5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + 5x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 5x = 0 + -4 5x = 0 + -4 Combine like terms: 0 + -4 = -4 5x = -4 Divide each side by '5'. x = -0.8 Simplifying x = -0.8

Solution

x = {-3, -0.8}

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