Question

I really need help with this A.S.A.P. !

Decide 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

Numerical Answers Expected!

Answer 1

b^2 - 4ac. If you were to ever to try and solve a quadratic using a quadratic formula, the b^2 -4ac is under a square root. So you're completely fine unless that part turns out negative.

Answer 2

So given that, you can check b^2 - 4ac to see if an answer does exist. (7)^2 - 4(2)(3) gives you 49 - 24, which is not negative, meaning you can solve for it. Now if you needed an answer from there, just continue on with the audratic formula and see what ya get.

Answer 3

Ok, so as long as the part under the square root sign is NOT negative, it can be solved. Is that what you're saying?

Answer 4

Exactly.