Aquadratic equation has exactly one real number solution. which is the value of its discriminant?

−1

0

1

2

0

Step-by-step explanation:

We know that if the number of real solutions the quadratic equation depends on the discriminant:-

Therefore, if a quadratic equation has exactly one real number solution.

Then, the value of its discriminant= 0.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2