SOLUTION: 3(x-5) when x^2=49 came across this Problem - and I wanted to know how to work it and how it is supposed to be figured out

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: 3(x-5) when x^2=49 came across this Problem - and I wanted to know how to work it and how it is supposed to be figured out       Log On


   

Question 256488: 3(x-5)
when
x^2=49
came across this Problem - and I wanted to know how to work it and how it is supposed to be figured out

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
I'm not sure what you want to do here. Do you want to evaluate 3%28x-5%29 when x%5E2=49 ?


If so, then solve x%5E2=49 to get x=7 or x=-7 and then simply plug those values into 3%28x-5%29 to get 3%287-5%29=3%282%29=6 or 3%28-7-5%29=3%28-12%29=-36