What statement are you talking about?

Start with the original expression.

Use the Distributive Property — multiply
by both
and
.

Combine the like terms — add up all the constants.

Reorder the terms.

Use the pythagorean theorm
16^2 + 12^2 = c^2
256 + 144 = c^2
400 = c^2
c = 20 feet or a
Answer:
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Step-by-step explanation: