Taking Square Root of Both Sides
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When solving a quadratic equation, when do you use the plus or minus (±) symbol?
After taking the square root of both sides
After adding the square to both sides
After taking half of b
After setting the equation equal to zero
Answer explanation
You use the ± symbol after taking the square root of both sides of a quadratic equation. This indicates that there are two possible solutions: one positive and one negative.
Tags
CCSS.HSA-REI.B.4B
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Choose the best method to solve this quadratic:
(a)
3x2 - 21 = 3
Square Roots
ZPP
Quadratic Formula
Answer explanation
To solve the equation 3x² - 21 = 3, first simplify it to 3x² = 24. Dividing by 3 gives x² = 8. Taking the square root of both sides leads to the solution. Thus, the best method is Square Roots.
Tags
CCSS.HSA-REI.B.4B
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve:
x2 - 49 = 0
x = -7, x = 7
x = -7
x = 7
x = -7, x = 1
Answer explanation
To solve x² - 49 = 0, factor it as (x - 7)(x + 7) = 0. Setting each factor to zero gives x - 7 = 0 (x = 7) and x + 7 = 0 (x = -7). Thus, the solutions are x = -7 and x = 7, making the correct choice x = -7, x = 7.
Tags
CCSS.HSA-REI.B.4B
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When do you use the plus or minus symbol?
After taking the square root of both sides
After adding the square to both sides
After taking half of the x-term
After setting the equation equal to zero
Tags
CCSS.HSA-REI.B.4B
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by taking square roots:
5m2 + 1 = 6
m = 1
m = 1 or -1
m = √7
m = 7/5 m = -7/5
Tags
CCSS.HSA-REI.B.4B
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by square roots
k2 - 6 = 43
k = √37
k = 37 or - 37
k = 7, k = -7
no solution
Tags
CCSS.8.EE.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
x2 = 100
10
10 or -10
50
50 or -50
Tags
CCSS.8.EE.A.2
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports
Continue with Google
Continue with Email
Continue with Classlink
Continue with Clever
or continue with
Microsoft
%20(1).png)
Apple
Others
Already have an account?
