pm8236602 pm8236602

08-06-2022
Mathematics

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Which of these is a correct expansion of (3x − 1)(4x² + 5)?

OA. 3x 4x2 + 3x 5+1 4x² +1.5

OB. 3x. 4x² + 3x • 5+ (−1) • 4x² + (−1) • 5

OC. 3x 4x² + (-1). 4x² + 4x².5+ (-1).5

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stella1713 stella1713

08-06-2022

The correct expansion is B. 3x. 4x^2 + 3x•5 + (-1) • 4x^2+ (-1) • 5

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