Question 92269
3X^2-10X=8
3X^2-10X-8=0
(3X+2)(X-4)=0
3X+2=0
3X=-2
X=-2/3 ANSWER.
X-4=0
X=4 ANSWER.
PROOF
3(-2/3)^2-10*-2/3=8
3(4/9)+20/3=8
12/9+20/3=8
12/9+60/9=8
(12+60)/9=8
72/9=8
8=8
3(4^2)-10*4=8
3*16-40=8
48-40=8
8=8