The special products can be used to perform selected multiplications. On the left, we use (x +
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The special products can be used to perform selected multiplications. On the left, we use (x + y)(x - y) = x2 - y2. On the right, (x - y)2 = x2 - 2xy + y2.
Use special products to evaluate each expression.
99 × 101
Transcribed Image Text:
472 = (50 – 3)² 51 x 49 = (50 + 1)(50 – 1) = 502 – 12 = 502 – 2(50)(3) + 32 = 2500 – 1 2500 – 300 + 9 = 2209 2499
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Related Book For
College Algebra
ISBN: 978-0134697024
12th edition
Authors: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
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