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2x^2-13x+15=0
2x^2-15x+2x+15=0
-x(2x-15)+(2x+15)=0
(2x+15)(1-x)=0
2x+15=0 or 1-x=0
x=-15/2 or x=1

Im not sure that I answer your question

oh yes, thanks, I got that but then when I checked the answer, it was wrong.

so is my answer corrcet?

well, i got the same answer as you did but when i tried to CHECK the answer, it wasn't right.

doesn't equal out.

oh I saw the problem

what is it?

2x^2-10x-3x+15=0
2x(x-5)-3(x-5)=0
(2x-3)(x-5)=0
x=3/2 or x=5

why did you separate them like that though?

the corrct answer after put #in to check x=5

just easy for me to see

okay, thank you :)

you are welcome