3 years ago

The value of the expression a³-2a²+3a+5 for a = -1

Mathematics

2 answers:

Liono4ka [1.6K]3 years ago

8 0

Answer:

=(-1)³-2(-1)²+3(-1)+5

=-1-2(1)+3(-1)+5

=-1-2+3+5

=-3+8

mrs_skeptik [129]3 years ago

4 0

Answer:

- 1

Step-by-step explanation:

Substitute a = - 1 into the expression, that is

(- 1)³ - 2(- 1)² + 3(- 1) + 5

= - 1 - 2(1) - 3 + 5

= - 1 - 2 - 3 + 5

= - 6 + 5

= - 1

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