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3 years ago

Evaluate each expression 12-3(4) and 12÷3(4) and 3×4(5-3) and 3(4+7)-5×4

Mathematics

1 answer:

DerKrebs [107]3 years ago

5 0

12-3(4) = 0

12÷3(4) = 16

3×4(5-3) = 24

3(4+7)-5×4 = 13

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Area of shaded region = $25x^2 - 64$

B. The expression, $25x^2 - 64$ , is the difference of two perfect squares, 25x² and 64. Therefore, apply the rule of factoring difference of two perfect squares.

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