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Big Ideas Math: Modeling Real Life, Grade 8
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Big Ideas Math: Modeling Real Life, Grade 8 View details
1. Finding Square Roots
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Exercise 5 Page 374

Think of a number that when raised to the second power results in 81.

- 9

Practice makes perfect
We want to find the negative square root of 81. - sqrt(81)We need to think of a number that when raised to the second power results in 81. This number is 9.
(9)^2
CalcPow

Calculate power

81 âś“
With this information, we can say that the negative square root of 81 is - 9. - sqrt(81) = - 9
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arrow_right Self-Assessment for Problem Solving p.377
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