9.2 Square Root Equations Day 2­1.notebook
March 22, 2016
DO NOW
Solve for x. Write your answer in simplest radical form, where necessary.
1) x2 ­ 8 = 28
2) 3x2 = 36
Mar 14­8:55 AM
HW
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Mar 17­9:23 AM
1
9.2 Square Root Equations Day 2­1.notebook
March 22, 2016
Solving an Equation Using Square Roots
Isolate the "squared" expression
(x ­ h)2 = c
Take the square root of both sides
x ­ h = ± √c
Solve for x
x = h ± √c
Mar 14­7:10 AM
Solve for x. Write your answer in simplest radical form, where necessary.
(x ­ 5)2 = 25
Mar 14­9:06 AM
2
9.2 Square Root Equations Day 2­1.notebook
March 22, 2016
Solve for x. Write your answer in simplest radical form, where necessary.
(x + 1)2 = 16
Mar 14­9:06 AM
Solve for x. Write your answer in simplest radical form, where necessary.
2(x ­ 7)2 = 98
Mar 14­9:06 AM
3
9.2 Square Root Equations Day 2­1.notebook
March 22, 2016
Solve for x. Write your answer in simplest radical form, where necessary.
(x + 5)2 ­ 7 = 2
Mar 14­9:06 AM
Solve for x. Write your answer in simplest radical form, where necessary.
3(x ­ 1)2 = 30
Mar 14­9:06 AM
4
9.2 Square Root Equations Day 2­1.notebook
March 22, 2016
Solve for x. Write your answer in simplest radical form, where necessary.
2(x + 4)2 ­ 10 = 0
Mar 14­9:06 AM
5