Question

9. Evaluate a2 - b2 + c if a = 2, b = -3, and c = 9.​

Answer 1

Step-by-step explanation:

a²+b²+C

=(2)²+(-3)²+9

=4+9+9

=22

Answer 2

Answer:

4

Step-by-step explanation:

a^2 = 2^2 = 4

b^2 = (-3)^2 = 9

a^2 - b^2 + c = 4 - 9 + 9

                      = 4

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