Correct Question
Lauren simplified the expression
as shown
Which statement explains Lauren's error
She should have multiplied the exponents instead of adding them
Step-by-step explanation:
The error in her workings is that she added the exponent instead of multiplying them
According to the law of indices
From the above illustration, it'll be observed that the exponents a and b were multiplied instead of adding or subtracting
Same thing is applicable to this expression in Lauren's case
She ought to multiply -7 and -5 to give 35 not adding them to give -12
The right solution to the expression is as follows: