Sign In
Ask Question
Yusuf Allison
Mathematics
7 August, 22:00
How do you solve x^2-7=4x^2+5
+2
Answers (
1
)
Destiney Spears
7 August, 22:25
0
No solution OR 2i
Step-by-step explanation:
x^2-7=4x^2+5
x^2-4x^2=5+7 - combine like terms
-3x^2=12 divide by negative 1
3x^2=-12 divide by 3 to isolate x.
x^2=-4
to get rid of the power, we have to square root, but since we cant square root a negative, it becomes no solution.
In case your teacher wants imaginary numbers as part of the solution
You would get x=2i
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Find an answer to your question 👍
“How do you solve x^2-7=4x^2+5 ...”
in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers
You Might be Interested in
How many fish did she see?
Answers (1)
Mark's salary is $900 per month. What is his yearly salary? $
Answers (2)
What is the measure of each interior angle of a regular octagon
Answers (2)
Which number (s) below belong to the solution set of the equation? Check all that apply X+6=45 A. 39 B. 35 C. 0 D. 45 E. 3 F. 51
Answers (1)
If you have 1 1/2 gallons of soup how many 1 cup servings can you make?
Answers (2)
New Questions in Mathematics
What is the next term of the arithmetic sequence? 8,5,2,-1,-4,?
Answers (2)
Identify the pattern and find the next number in the pattern. 0.8, 3.2 12.851.2
Answers (1)
Factor completely 2x² - 12 + 10
Answers (1)
On a recent day one US dollar was worth 1.09 euros. If you were to exchange 157 euros on that day how many US dollars would you have received? -$111.09 -$144.04 -$155.91 -$171.13
Answers (1)
If the volume for 3-D pyramid A is 200 cm3 and the volume for 3-D pyramid B is 800 cm3, how many times bigger is the volume of pyramid B than pyramid A? is it 4 or 0.004
Answers (1)
Home
»
Mathematics
» How do you solve x^2-7=4x^2+5
Sign In
Sign Up
Forgot Password?