Determine the discriminant of x2 = 4.

A. 17

B. 16

C. - 15

D. - 10

Question

Mathematics

Pirate

9 June, 09:32

Determine the discriminant of x2 = 4.

A. 17

B. 16

C. - 15

D. - 10

+1

Answers (2)

Know the Answer?

Jayden · Answer 1

X² = 4

x² - 4 = 0 comparing to a x² + bx + c = 0, a = 1, b = 0, c = - 4

Discriminant = b² - 4ac

b² - 4ac = 0 ² - 4*1*-4 = 0 + 16 = 16

Discriminant = 16.

option B

Alexandria Pearson · Answer 2

The discriminant is b ²-4ac

We can rewrite x ² = 4 to x ² + 0x - 4 = 0

So a = 1, b = 0, c = - 4

Δ = 0 - 4 * 1 * - 4

Δ = 16

The answer is B

Determine the discriminant of x2 = 4.A. 17B. 16C. - 15D. - 10

Determine the discriminant of x2 = 4.

A. 17

B. 16

C. - 15

D. - 10