Mathematics

Ronald Shaw

Today, 06:45

Hen evaluated the expression below.

2 (12 minus 14) squared minus (negative 5) + 12 = 2 (negative 2) squared minus (negative 5) + 12 = 2 (negative 4) minus (negative 5) + 12 = negative 8 + 5 + 12 = 9.

What was hen's error?

Hen did not multiply 2 and 12 first.

Hen evaluated Minus (negative 5) as 5.

Hen added and subtracted before multiplying.

Hen evaluated (Negative 2) squared as

+4

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