Question

If the right-hand side of a quadratic equation does not equal zero, you need to ______ the number or expression on the right-hand side from both sides before you can use the quadratic formula.

Answer 1

We have two cases here:

Case 1:

If we have a quadratic equation of the form:

$ax^{2} +bx = c$

Now if we need to bring c to the left side , we will have to subtract it from left side.

$ax^{2} +bx- c=0$

Case 2:

we have a quadratic equation of the form:

$ax^{2} +bx = -c$

Now if we need to bring c to the left side , we will have to add it on the left side.

$ax^{2} +bx+c=0$

Answer : If the right-hand side of a quadratic equation does not equal zero, you need to either add or subtract the number or expression on the right-hand side from both sides before you can use the quadratic formula.

Answer 2

If the right hand side of a quadratic equation does not equal zero, you need to subtract the number...