Question

I don’t get this? Someone please answer and explain :))

Answer 1

Answer:

False

Step-by-step explanation:

The given quadratic equation is $ax^2+bx+c=0$.

By completing the square, we can obtain the formula for the calculating the solutions of the quadratic equation to be

$x=\frac{-b\pm \sqrt{b^2-4ac} }{2a}$

But the formula given is

$x=\frac{b\pm \sqrt{b^2-4ac} }{2a}$

This last equation does not have negative sign in front of the b, hence the answer is false.

Answer 2

Answer:

True

Step-by-step explanation:

That expression is called the "Quadratic formula" and basically the solution to any second degree equation can be find by using the quadratic formula.

Attached you can find the procedure to get to the quadratic formula from the general equation of a second degree polynomial.