Q. Select the equivalent expression.((2−10)/(42))7=?Choose 1 answer:(A) (1)/(270⋅414)(B) 284(C) 2−3⋅4−9
Simplify base: Simplify the base of the exponent.We have the expression ((2−10)/(42))7. First, we need to simplify the base. Since 4 is 22, we can rewrite 42 as (22)2.
Power rule: Apply the power of a power rule.Using the power of a power rule, which states that (am)n=am∗n, we can simplify (22)2 as 22∗2=24.
Rewrite expression: Rewrite the original expression with the simplified base.Now we can rewrite the original expression as ((2−10)/(24))7.
Quotient rule: Apply the quotient of powers rule.Using the quotient of powers rule, which states that am/an=am−n, we can simplify the expression inside the parentheses as 2−10−4=2−14.
Power rule again: Apply the power of a power rule again.Now we have (2−14)7. Using the power of a power rule again, we can simplify this as 2−14×7=2−98.
Check answer choices: Check the answer choices.We have simplified the expression to 2−98. Now we need to check which answer choice matches this expression.(A) (1)/(270∗414) does not match because it has positive exponents and includes a factor of 414.(B) 284 does not match because it has a positive exponent and the exponent is different from −98.(C) 2−3∗4−9 does not match because it has two separate bases and the exponents do not add up to −98.None of the answer choices match our simplified expression.
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