Question

$for \: a = 3 \: siplify \: a {}^{2} + 5a + 4 \: and \: a {}^{2} - 5a$
plz anyone help me fast
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Answer 1

Step-by-step explanation:

a²+5a+4

= 3²+5×3+4

= 9+15+4

= 27

Also,

a²-5a

= 3²-5×3

= 9-15

= -6

Answer 2

Answer:

Please mark me as a Brainlist answer