(2x+9)(5x+2)=

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Solution for (2x+9)(5x+2)= equation: 


Simplifying
(2x + 9)(5x + 2) = 0

Reorder the terms:
(9 + 2x)(5x + 2) = 0

Reorder the terms:
(9 + 2x)(2 + 5x) = 0

Multiply (9 + 2x) * (2 + 5x)
(9(2 + 5x) + 2x * (2 + 5x)) = 0
((2 * 9 + 5x * 9) + 2x * (2 + 5x)) = 0
((18 + 45x) + 2x * (2 + 5x)) = 0
(18 + 45x + (2 * 2x + 5x * 2x)) = 0
(18 + 45x + (4x + 10x2)) = 0

Combine like terms: 45x + 4x = 49x
(18 + 49x + 10x2) = 0

Solving
18 + 49x + 10x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(9 + 2x)(2 + 5x) = 0


Subproblem 1
Set the factor '(9 + 2x)' equal to zero and attempt to solve:

Simplifying
9 + 2x = 0

Solving
9 + 2x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + 2x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = 0 + -9
2x = 0 + -9

Combine like terms: 0 + -9 = -9
2x = -9

Divide each side by '2'.
x = -4.5

Simplifying
x = -4.5

Subproblem 2
Set the factor '(2 + 5x)' equal to zero and attempt to solve:

Simplifying
2 + 5x = 0

Solving
2 + 5x = 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 + 5x = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 5x = 0 + -2
5x = 0 + -2

Combine like terms: 0 + -2 = -2
5x = -2

Divide each side by '5'.
x = -0.4

Simplifying
x = -0.4
Solution
x = {-4.5, -0.4}

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