Question

The polynomial 32x^2+12x-57 has two real roots, true or false?

I think it's true but I just want to check!

Answer 1

the discriminant can be used to tell how many real roots
if b^2 - (4)(a)(c) > 0
a = 32 b=12 c= -57
is (12)^2 -(4)(32)(-57) > 0

Answer 2

Thank you! So in that case would the answer still be true? @triciaal

Answer 3

yes you were thinking right but now you know how to check
additionally, you are adding a large + to a Positive when you multiply 2 negatives you get a +
welcome