Question

How can you tell when a quadratic equation has two identical, rational solutions?
Answer
a.when the radicand is not a perfect square
b.when the radicand equals zero
c.when the radicand is negative
d. when b in the quadratic formula is greater than the radicand

Answer 1

b... if the radicand is zero, then sqr(0) = 0 so the quadratic formula gives only one root.

Answer 2

b. if the discriminant (radicand) = 0 , you only have 1 rational root.

Answer 3

thank you

Answer 4

yw