Question

how do you solve 3x^2-36x=-40

Answer 1

x=2(9+ 51−−√ )3,2(9− 51−−√ )3
x≈10.760952285695,1.239047714305

Answer 2

that's not how I learned it

Answer 3

one way is to put into graphing calculator and find the x-intercepts, if you want the written way, give me a minute or two xD

Answer 4

I would like the written way I was taught to use x= -b+- the square root of b^2-4ac over 2a

Answer 5

unfortunately i cant help with written :( but i can tell you that x=1.239 and x=10.761 i hope this helps a little...

Answer 6

so the person was right with the answer, i just dont understand the work that well...