Question

Decide which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring.

−b b^2 − 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

Answer 1

The part of the quadratic formula that tells you whether the equation can be solved by factoting is √b²-4·c·a, as if the result of this is positive you can factor.

The value of this part is: √49 - 24 = √25 = 5