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xRAWRRx3
 2 years ago
Find the sum of the roots of 2x^2 = 13x  15.
xRAWRRx3
 2 years ago
Find the sum of the roots of 2x^2 = 13x  15.

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ktnguyen1
 2 years ago
Best ResponseYou've already chosen the best response.12x^213x+15=0 2x^215x+2x+15=0 x(2x15)+(2x+15)=0 (2x+15)(1x)=0 2x+15=0 or 1x=0 x=15/2 or x=1

ktnguyen1
 2 years ago
Best ResponseYou've already chosen the best response.1Im not sure that I answer your question

xRAWRRx3
 2 years ago
Best ResponseYou've already chosen the best response.0oh yes, thanks, I got that but then when I checked the answer, it was wrong.

ktnguyen1
 2 years ago
Best ResponseYou've already chosen the best response.1so is my answer corrcet?

xRAWRRx3
 2 years ago
Best ResponseYou've already chosen the best response.0well, i got the same answer as you did but when i tried to CHECK the answer, it wasn't right.

ktnguyen1
 2 years ago
Best ResponseYou've already chosen the best response.12x^210x3x+15=0 2x(x5)3(x5)=0 (2x3)(x5)=0 x=3/2 or x=5

xRAWRRx3
 2 years ago
Best ResponseYou've already chosen the best response.0why did you separate them like that though?

ktnguyen1
 2 years ago
Best ResponseYou've already chosen the best response.1the corrct answer after put #in to check x=5

ktnguyen1
 2 years ago
Best ResponseYou've already chosen the best response.1just easy for me to see
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