Question

2^30 + 2^30 + 2^30 + 2^30 =

Answer 1

Answer:

D

Step-by-step explanation:

$x+x+x+x=4 \cdot x \text{ or } 4x$

So $2^{30}+2^{30}+2^{30}+2^{30}=4 \cdot 2^{30}$.

Now 4 can be rewritten so that it is 2 to some power.

4 is actually 2 to the second.

That is, $4=2^2$.

So $2^{30}+2^{30}+2^{30}+2^{30}=2^2 \cdot 2^{30}$.

Now there is a law of exponents that says if the bases are the same and your multiplying add the exponents.

$2^{30}+2^{30}+2^{30}+2^{30}=2^2 \cdot 2^{30}$.

$2^{30}+2^{30}+2^{30}+2^{30}=2^{32}$.

Answer 2

Answer:

The answer is D! Hope this helped.

Step-by-step explanation: