Please help will medal!!

What is the value of the expression?

4^3 × 4^-5

A. 4^-15

B. 4^-2

C. 4^2

D. 4^8

Question

Please help will medal!! 

What is the value of the expression? 

4^3 × 4^-5

A.  4^-15

B.  4^-2

C.  4^2

D.  4^8

fortytherapper · Answer

Do you know the rule of multiplying numbers with exponets?

When you multiply two numbers that have exponents (In the case 3 and -5), would you add, subtract, multiply, or divide them?

anonymous · Answer

No I don't and multiply??

fortytherapper · Answer

Ah, alright

Since the bases are the same and the exponents are different, you would keep the bases as it is and add the exponents.

Both bases are 4 and the exponents are different (3 and -5)

So your answer is 4^(3+(-5)), which is?

anonymous · Answer

D 4^8

fortytherapper · Answer

Almost

When you do 3+-5

What does a +- equal? A negative or a positive?