Answer:
It is, D
Step-by-step explanation:
Your welcome for raising your test score
The discriminant is b<span>²-4ac
We can rewrite x</span>² = 4 to x<span>² + 0x - 4 = 0
So a = 1, b = 0, c = -4
</span>Δ = 0 - 4 * 1 * -4
Δ = 16
The answer is B
Answer:
52 units squared
Step-by-step explanation:

Answer:
D.
Step-by-step explanation:
Hi there! You’re correct.
Twice the difference of nine and a number squared would look like

I hope this helped! :)