Blake simplified the expression open paren the fraction with numerator x to the 12th power and denominator x to the negative 3 power close paren to the 5th power to the fraction with numerator 1 and denominator x to the 20th power What was Blake’s mistake?
Answer
A
He added 5 to the exponent in the numerator instead of multiplying.
B
He multiplied only the exponent in the numerator of the fraction by 5 .
C
He subtracted the exponents in the parentheses instead of dividing.
D
He divided the exponents in the parentheses instead of subtracting.