If (x2 – 4) ÷ (x + 2) = x – 2, which polynomial should fill in the blank below?(x + 2) ´ ______ = x2 – 4

The equation says that dividing x² − 4 by x + 2 gives x − 2. To reverse the division, multiply the divisor by the quotient: (x + 2)(x − 2) = x² − 4. So the blank should be x − 2, choice B.

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