5x 24. x2 - 18x = -81

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
Problem 43RE
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Do #24. Not Graded. Show Your Work.
Examples 2-4 Solve each equation. If exact roots cannot be found, state the consecutive integers
between which the roots are located.
20. x? = 5x
21. -2x? – 4x = 0
22. x2 – 5x – 14 = 0
23. -х2 + 2х + 24 %3D 0
24. x2 – 18x = -81
25. 2x? – 8x = –32
26. 2x2 – 3x – 15 = 4
27. -3x? – 7 + 2x = -11
28. -0.5x2 + 3 = -5x – 2
29. -2x + 12 = x² + 16
Transcribed Image Text:Examples 2-4 Solve each equation. If exact roots cannot be found, state the consecutive integers between which the roots are located. 20. x? = 5x 21. -2x? – 4x = 0 22. x2 – 5x – 14 = 0 23. -х2 + 2х + 24 %3D 0 24. x2 – 18x = -81 25. 2x? – 8x = –32 26. 2x2 – 3x – 15 = 4 27. -3x? – 7 + 2x = -11 28. -0.5x2 + 3 = -5x – 2 29. -2x + 12 = x² + 16
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