Answer:
D
Step-by-step explanation:
[tex]x+x+x+x=4 \cdot x \text{ or } 4x[/tex]
So [tex]2^{30}+2^{30}+2^{30}+2^{30}=4 \cdot 2^{30}[/tex].
Now 4 can be rewritten so that it is 2 to some power.
4 is actually 2 to the second.
That is, [tex]4=2^2[/tex].
So [tex]2^{30}+2^{30}+2^{30}+2^{30}=2^2 \cdot 2^{30}[/tex].
Now there is a law of exponents that says if the bases are the same and your multiplying add the exponents.
[tex]2^{30}+2^{30}+2^{30}+2^{30}=2^2 \cdot 2^{30}[/tex].
[tex]2^{30}+2^{30}+2^{30}+2^{30}=2^{32}[/tex].
