Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring?

−b b2 − 4ac 2a

Use the part of the quadratic formula that you chose above and find its value given the following quadratic equation:

2x2 + 7x + 3 = 0

Question

Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring? 

                                                   −b                     b2 − 4ac                      2a 

Use the part of the quadratic formula that you chose above and find its value given the following quadratic equation: 

2x2 + 7x + 3 = 0

klimenkov · Answer

What do you think about it?

anonymous · Answer

i think its the middle one

klimenkov · Answer

Why so you think so? Or you just guess?

anonymous · Answer

well, i think you need that to factor, but its pretty much just a guess

anonymous · Answer

why, what are you thinking?

klimenkov · Answer

You can factor this only in case if you have real roots. They will be if the discriminant of your equation is bigger that zero.

anonymous · Answer

the b^2-4ac > 0 means there are two distinct real roots

anonymous · Answer

|dw:1365103062271:dw|