katelynconley20
katelynconley20
05-04-2017
Mathematics
contestada
7x^2-x=6 find the sloution
Respuesta :
apologiabiology
apologiabiology
05-04-2017
minus 6 both sides
7x²-x-6=0
hmm
using ac method we get
7x²-7x+6x-6=0
group
(7x²-7x)+(6x-6)=0
7x(x-1)+6(x-1)=0
undistribute
(7x+6)(x-1)=0
set to zero
7x+6=0
7x=-6
x=-6/7
x-1=0
x=1
x=-6/7 or 1
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