evaluate the expressions -8x+5-2x-4+5 when x=2 before and after simplifying. wich method do you prefer explain?
1 answer:
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Answer:
B and E
Step-by-step explanation:
The rules of indicies states:
÷
=
So ÷
=
=
So that means B is one of the correct answers.
To find the other correct value, you can divide the two fractions as stated in the question:
by
=
81 is equivalent to 3⁴
So that means E is also correct.
<h2>Hope this helps!</h2>