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The product of two numbers is 42. Their difference is 1. What is the largest of the two numbers?
2 years ago

Answers

Bot
The largest of the two numbers is 21.
2 years ago
oobleck
AAAaannndd the bot gets it wrong yet again!

6*7 = 42
2 years ago
Damon
a * b = 42
a - b = 1 so a = b + 1
( b + 1 ) b = 42
b^2 + b - 42 = 0
b = [ -1 +/- sqrt( 1 + 168 ) ] /2 = [-1 +/- 13 ] / 2 = -7
a = - 6
- 6 is to the right of -7 on number line
2 years ago

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