Question

I need to know the answer

Answer 1

Answer:

A only.

Step-by-step explanation:

A. 2^2 + 3(2) - 10 = 0

4 + 6 - 10 = 0

10 - 10 = 0

0 = 0 (correct)

-5^2 + 3(-5) - 10 = 0

25 + (-15) - 10 = 0

10 - 10 = 0

0 = 0 (correct)

B. 2^2 - 3(2) - 10 = 0

4 - 6 - 10 = 0

-2 - 10 = 0

-12 = 0 (not correct)

-5^2 - 3(-5) - 10 = 0

25 - (-15) - 10 = 0

40 - 10 = 0

30 = 0 (not correct)

C. 2^2 + 7(2) + 10 = 0

4 + 14 + 10 = 0

18 + 10 = 0

28 = 0 (not correct)

-5^2 + 7(-5) + 10 = 0

25 + (-35) + 10 = 0

-10 + 10 = 0

0 = 0 (correct)

D. 2^2 - 7(2) + 10 = 0

4 - 14 + 10 = 0

-10 + 10 = 0

0 = 0 (correct)

-5^2 - 7(-5) + 10 = 0

25 - (-35) + 10 = 0

60 + 10 = 0

70 = 0 (not correct)