Respuesta :
This involvea factoring the polynomial into binomials and solving.
So make it (3x+1)(x-7)
X equals 7 and -1/3
So make it (3x+1)(x-7)
X equals 7 and -1/3
3x^2-20x-7=0
9x-20x-7=0
-11x-7=0
-7 -7
_______
-11x 0
_____
11 11
your answer is 0
9x-20x-7=0
-11x-7=0
-7 -7
_______
-11x 0
_____
11 11
your answer is 0