Chapter 8 Worksheet With Answers - Montville Township Public Schools Page 33
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38SOLUTION:
Study Guide and Review - Chapter 8
4
78. x
− 1
SOLUTION:
4
2
79. x
− 16x
SOLUTION:
Solve each equation. Confirm your answers using a graphing calculator.
2
80. (x − 5)
= 121
SOLUTION:
The roots are –6 and 16.
2
Confirm the roots using a graphing calculator. Let Y1 = (x − 5)
and Y2 = 121. Use the intersect option from the
CALC menu to find the points of intersection.
[–20, 20] scl: 3 by [–5, 125] scl: 13
[–20, 20] scl: 3 by [–5, 125] scl: 13
The solutions are –6 and 16.
eSolutions Manual - Powered by Cognero
Page 33
2
81. 4c
+ 4c + 1 = 9
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