Question

Where does the graph of y = 2x2 + 7x + 3 cross the x-axis?

(−1 over 2, 0) and (−3, 0)

(1 over 2, 0) and (3, 0)

(−3 over 2, 0) and (−1, 0)

(3 over 2, 0) and (1, 0)

Answer 1

@agent0smith can you help?

Answer 2

It looks like this should factor. Try setting it equal to zero, and factoring to find where it crosses the x-axis\[\Large 2x^2 + 7x + 3 = 0\]

Answer 3

It factors like so:\[\Large (2x+1)(x+3) = 0\]

Answer 4

thank you!! :)

Answer 5

so I'm thinking D

Answer 6

can you help me with one more??

Answer 7

nevermind I got it thanks

Answer 8

\[\Large (2x+1)(x+3) = 0\]means either \[\Large 2x+1= 0\] or \[\Large x+3 = 0\]