Question

if a= -2, find the values of the following polynomials. a²+1 and 4-a²​

Answer 1

Step-by-step explanation:

a^2+1

(-2)^2+1

4+1

5

4-a^2

4-(-2)^2

4-4

0

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Answer 2

Step-by-step explanation:

given a=-2

so replace a= -2

a^+1=(-2)^+1

=4+1

=5

4-a^=4-(-2)^

= 4-4

= 0