alleryStart learning →The factors are opposites: (a−b)(b−a). Which signed square is their product?
Aa² + b²
B−(a − b)²
Ca² − b²
D(a − b)²
Answer & Solution
Correct answer: B. −(a − b)²
Since b − a = −(a − b), multiplying the two factors gives the negative square −(a − b)².
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