Where does the graph of y = 6x2 + 5x − 6 cross the x-axis?

(−1/6, 0) and (6, 0)

(1/6, 0) and (−6, 0)

(2/3, 0) and (−, 0)

(−2/3, 0) and (, 0)

Question

Where does the graph of y = 6x2 + 5x − 6 cross the x-axis?

 (−1/6, 0) and (6, 0)

 (1/6, 0) and (−6, 0)

 (2/3, 0) and (−, 0)

 (−2/3, 0) and (, 0)

cwrw238 · Answer

you can try  plugging in each of the above values to see if they fit
or  try to factor it

cwrw238 · Answer

it will factor

cwrw238 · Answer

to   (3x  -   _   )(2x   +  _   )

can you fill in the blanks

anonymous · Answer

not sure how

cwrw238 · Answer

you need 2 numbers a and b where a * b = -6    (the last term in trinomial)
and where 3b  - 2b = +5   ( the middle   term  +5x)

cwrw238 · Answer

they are -2 and 3 
so factors are

(3x - 2)(2x + 3)

cwrw238 · Answer

(3x - 2)(2x + 3) = 0
so solve for x