# SOLUTION: solve for x: 4x(x-5)-5x(x-4)=-1

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 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Click here to see ALL problems on Polynomials-and-rational-expressions Question 624779: solve for x: 4x(x-5)-5x(x-4)=-1Answer by reynard2007(52)   (Show Source): You can put this solution on YOUR website!Here's how I did it: This is given Distribute 4x and -5x to the contents of the parenthesis next to them. DPMA? Add like terms: and Transpose -1 to the other side of the equation, which makes it positive In solving equations like this, oyu are allowed to multiply a number to both sides of the equation, so long as you do it for both sides of the equation. Here, multiply -1 to both sides turning to positive and to If you are familiar with the special product called DOTS (Difference of two squares) this will make solving the equation easier. Given you can factor it to and . Equate both of these to 0 and you get: --> and --> I can't find a way to reply to your comment so, I just edited this. when ; You can try the same with Hope this does it for your problem.