?You can use the product of conjugates pattern to multiply numbers without a calculator
Chapter 6, Problem 350(choose chapter or problem)
You can use the product of conjugates pattern to multiply numbers without a calculator. Say you need to multiply 47 times 53. Think of 47 as 50 − 3 and 53 as 50 + 3 .
ⓐ Multiply (50 − 3)(50 + 3) by using the product of conjugates pattern, \((a-b)(a+b)=a^{2}-b^{2}\).
ⓑ Multiply \(47 \cdot 53\) without using a calculator.
ⓒ Which way is easier for you? Why?
Text Transcription:
(a-b)(a+b)=a^2-b^2
47 dot 53
Unfortunately, we don't have that question answered yet. But you can get it answered in just 5 hours by Logging in or Becoming a subscriber.
Becoming a subscriber
Or look for another answer