Question

For a = 3, simplify a2 + 5a + 4 and a2 - 5a​

Answer 1

Step-by-step explanation:

3²+5(3)+4

9+15+4

28

and a²-5a

3²-5(3)

9-15

-6

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Answer 2

Answer:

Step-by-step explanation:

3x2+5x3+4+3x2-5x3

6+15+4+6-15

31-15

16