Download Square and Cube Roots

2
𝑥
𝑥
5
4
9
3
25
16
81
9
𝑥
3
125
64
729
27
𝑥
5
𝑥
2
25
You probably chose 5 because 5●5=25
You could also say that the
square root of 25 equals 5
This is written as 25 = 5
𝑥
4
𝑥
3
64
You probably chose 4 because 4●4●4=64
You could also say that the
cube root of 64 equals 4
3
This is written as 64 = 4
196 =
Because 14●14=196
3
216 =
Because 6●6●6=216
Find the missing value:
2
= 100
Finding the value is the same as finding 100
This is also the same as solving the equation:
2
𝑥 = 100
Are there any other values for x that would
also be a solution to this equation?
2
𝑥 = 100
x could also equal -10 because -10●-10 = 100?
So 𝑥 = ±10
This symbol means
positive or negative
Find the missing value:
3
=8
3
Finding the value is the same as finding 8
This is also the same as solving the equation:
3
𝑥 =8
Are there any other values for x that would
also be a solution to this equation?
3
𝑥 =8
Could x also equal -2 ?
No, because -2●-2●-2=-8
144
− 144
12
− 12
± 144
±12
Simplify:
2
5 + 225
25+15
40
Simplify:
2
3
14 + 125
196 + 5
201
Simplify:
3
− 16 + 729
-4 + 9
5