If a = -3, find the value of a) 2a b) a^2 c) 3a^2

asked May 4, 2023 158k views

20 votes

If a = -3, find the value of
a) 2a
b) a^2
c) 3a^2

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6 votes

$\textbf{a)}\\\\2a=2(-3) = -6\\\\\textbf{b)}\\\\a^2 = (-3)^2 = 9\\\\\textbf{c)}\\\\3a^2 = 3(-3)^2 = 3 \cdot 9 = 27$

5.7k points

4 votes

Answer:

a) -6

b) 9

c) 27

Explanation:

$2( - 3) = - 6 \\ { - 3}^(2) = - 9 \\ 3 {( - 3)}^(2) = 27$

Extraeee answered May 8, 2023

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