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Rewriting Exponential Expressions with Common Bases
Grade Level
PSAT Prep
067 Rewriting Exponential Expressions with Common Bases
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A student rewrites 27^(2x) as 3^(2x+3). Which correction explains the proper rewrite?
A
27^(2x) = 3^(2x+3) because exponents are added when a power is raised to a power.
B
27^(2x) = 3^(2x/3) because the exponent must be divided by 3.
C
27^(2x) = 3^(6x) because the exponents 3 and 2x must be multiplied.
D
27^(2x) = 3^(2x-3) because the base changes from 27 to 3.
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