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Rzqust [24]
3 years ago
8

Need help I forgot how to do this ​

Mathematics
1 answer:
Marat540 [252]3 years ago
8 0

Answer:

A.

Step-by-step explanation:

you have to find the discriminant

b²-4ac for each equation

if discriminant < 0 no real solutions because will be negative under the squareroot whhan you try to find the roots

if discriminant = 0 there is only one solution

if discriminant > 0 two real solutions

for your given problems

A. discriminant =(-2)²-4*2*15 will be negative

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