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Remember that an exponent means repeated multiplication.

The exponent of 4 means you have four 's mutiplied together:

And then each exponent of 2 inside means you have two 's multiplied inside each set of parentheses.:  

There are 8 b's there when you expand this out.

damm bro the struggle

step-by-step explanation:

i belive those are the ones that are under 90 degreese.