How do you evaluate the expression for 2x if x=−2 and if x=3?

Edkowiez2x

Edkowiez2x

Answered

2022-02-01

How do you evaluate the expression for 2x if x=2 and if x=3?

Answer & Explanation

Rihanna Lester

Rihanna Lester

Expert

2022-02-02Added 12 answers

Step 1
For each of these you substitute the value for x in the expression.
Solve for x=2
22
We can use this rule for exponents to rewrite this problem:
xa=1xa
22
122
122
14
Step 2
Solve for x=3
23
2×2×2
=8

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