Sign In
Ask Question
Mathematics
Lilianna Underwood
28 June, 19:12
What are the roots of the equation x^2 + - 9=0
+2
Answers (
1
)
Isabela Arroyo
28 June, 19:55
0
x = 3 or x = - 3
Step-by-step explanation:
If x^2 - 9 = 0 we transfer 9 to the right side of the equation and it's change negative sign to positive while doing so
now we have x^2 = 9 the square of a number must be equal to a positive number in real numbers
but the root can be either negative or positive so we say x = 3 or x = - 3
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Get an answer to your question ✅
“What are the roots of the equation x^2 + - 9=0 ...”
in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
If 15 times a number to equal 647
Answers (1)
What is 5% of 336200
Answers (1)
Find the differential of the function y=xcos (8x)
Answers (1)
If Julie needs 3 1/4 cups of oatmeal, how many 1/4 cups of oatmeal will she use
Answers (2)
Write x3 - x2 - 6x in factored form. x (x - 3) (x + 2) x (x + 3) (x - 2) x (x + 1) (x - 6) x (x - 1) (x + 6)
Answers (2)
New Questions in Mathematics
A map scale is 1 inch:50 miles. Two cities are 450 miles apart. How far apart are the cities on the map
Answers (1)
Do you listen to yungblud?
Answers (2)
There's a full 12 piece pizza. Ayla got a slice of pizza and John got 1 and two half's of pizza ... how many slices are left.
Answers (1)
Find all values of x in the interval [0, 2π] that satisfy the equation. (enter your answers as a comma-separated list.) 6 sin (2x) = 6 cos (x)
Answers (1)
2x+4≥24 how do I solve this problem
Answers (1)
Home
»
Mathematics
» What are the roots of the equation x^2 + - 9=0
Sign In
Sign Up
Forgot Password?