Finding Absolute Value
| 5 | =
5
| 6 | ____ | -6 |
( < > = )
6 = 6
|7| + |3| =
7 + 3 = 10
How many solutions are there in the equation:
|x+1|= -2
None / No solution
| x | = 6
x = 6 and x = -6
Solve this equation by taking square roots.
x2 + 1 = 26
x2 = 25
x= 5, -5
| -12 | =
12
| 15 | ____ | -10 |
( < > = )
15 > 10
|3| x |-5| =
3 x 5 = 15
How many solutions are there in the equation: |x| = 3
Two solutions
| d + 1 | = 7
What is { 6 , -8 }
Solve this equation by taking square roots.
(x-4)2 - 16 = 0
(x-4)2 = 16
x- 4 =± 4
x = 0 or 8
-3
| -7 | ____ | -5 |
( < > = )
7 > 5
|-8| + |-5| + |3| =
8 + 5 + 3 = 16
How many solutions are there in the equation:
-3| 3t - 2 | - 12 = -6
None / No solution
| w + 9 | = 17
What is { 8 , -26 }
Solve this equation by taking square roots.
(x+7)2 - 11 = 0
(x+7)2 = 11
x + 7 = ±√11
x = -3.68 and -10.32
- | -4 | =
-4
- | 9 | ____ | -11 |
( < > = )
-9 < 11
|-2 – 10| ÷ 3 =
| -12 | ÷ 3 = 12 ÷ 3 = 4
How many solutions are there in the equation:
2| y + 4 | = 14
Two Solutions
| z - 13 | = 21
What is { -8 , 34 }
What do you have to do first to solve quadratics equation by taking square roots?
isolate the square
| 0 | =
0
- | 4 | ____ - | 2 |
( < > = )
-4 < -2
|7 – 11| x |2 – 5| =
| -4 | x | -3 | = 4 x 3 = 12
How many solutions are there in the equation:
3| 2a - 4 | = 0
One solution
| a - 6 | = 10
What is { 16 , -4 }
What do you have to do to solve quadratics equation by taking square roots after step 1?
You have to take the square roots both sides. After that, solve the square roots and sole for x.