(25-x)(45-x)=525

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Solution for (25-x)(45-x)=525 equation:


Simplifying
(25 + -1x)(45 + -1x) = 525

Multiply (25 + -1x) * (45 + -1x)
(25(45 + -1x) + -1x * (45 + -1x)) = 525
((45 * 25 + -1x * 25) + -1x * (45 + -1x)) = 525
((1125 + -25x) + -1x * (45 + -1x)) = 525
(1125 + -25x + (45 * -1x + -1x * -1x)) = 525
(1125 + -25x + (-45x + 1x2)) = 525

Combine like terms: -25x + -45x = -70x
(1125 + -70x + 1x2) = 525

Solving
1125 + -70x + 1x2 = 525

Solving for variable 'x'.

Reorder the terms:
1125 + -525 + -70x + 1x2 = 525 + -525

Combine like terms: 1125 + -525 = 600
600 + -70x + 1x2 = 525 + -525

Combine like terms: 525 + -525 = 0
600 + -70x + 1x2 = 0

Factor a trinomial.
(10 + -1x)(60 + -1x) = 0

Subproblem 1

Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10

Subproblem 2

Set the factor '(60 + -1x)' equal to zero and attempt to solve: Simplifying 60 + -1x = 0 Solving 60 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-60' to each side of the equation. 60 + -60 + -1x = 0 + -60 Combine like terms: 60 + -60 = 0 0 + -1x = 0 + -60 -1x = 0 + -60 Combine like terms: 0 + -60 = -60 -1x = -60 Divide each side by '-1'. x = 60 Simplifying x = 60

Solution

x = {10, 60}

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