![iviestrong7430](/avatars/47866.jpg)
iviestrong7430
08.01.2020 •
Mathematics
Solve the quadratic equation by completing the square.
x^2+4x-6=0
first, choose the appropriate form and fill in the blanks with the correct numbers.
then, solve the equation. round your answer to the nearest hundredth.
if there is more than one solution, separate them with commas.
Solved
Show answers
More tips
- H Health and Medicine What You Need to Know About Nasal Congestion in Infants: Causes, Symptoms, and Treatment...
- A Auto and Moto Mastering One-Movement Parking: All You Need to Know...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- P Photography and Videography How to Choose the Perfect Photo Paper for Your Images?...
- C Computers and Internet How to Choose an Uninterruptible Power Supply (UPS) for Your Computer: Expert Tips...
- S Science and Technology How to choose a home theater system?...
- A Auto and Moto How to Choose a Car Wash? Tips and Recommendations...
- A Animals and plants How ants survive winter: exploring the secrets of their winter life...
- C Construction and repair How to Choose the Best Underfloor Heating?...
- S Sport When is the Champions League final?...
Answers on questions: Mathematics
- M Mathematics A university surveyed its students on their opinions of campus housing. The following two-way table displays data for the sample of 200 200200 students who responded to the survey....
- M Mathematics Donkey Kong and Diddy Kong are keen cyclists. They are doing an 80 km time trial. Donkey sets off at 8 am. He cycles at 30 km/hour until he reaches the halfway point, where there...
- M Mathematics Please help I’m on a quizz...
- M Mathematics What is the simplified form of expression...
- M Mathematics Choose all the expressions that are equal to 34. A. 815−511 B. 712+16 C. 56−112 D. 1+14 E. 1720−35...
- M Mathematics No Solutions 6−3+4x+1= x + One Solution 6−3+4x+1= x + Infinitely Many Solutions 6−3+4x+1= x +...
- M Mathematics verify experimentally that the exterior angle of a triangle is equal to the sum of opposite interior angles ...
- M Mathematics A number cube is marked 1, 2, 3,4,5 and on 6 it s face if you roll the cube one time what is the probability that is 2...
- M Mathematics Helpppp plsssssss guysss the bottom awnser is 6 btw...
- M Mathematics Triangle ABC is similar to triangle RST. Use the image below to answer questions 6 and 7. 6) find the value of x 7) find the measure of angle A...
Ответ:
Working
Take 6 to the other side
x^2+4x = 6
Find the 3rd for the left hand side:
x^2+4x+ (4/2)^2= 6 + (4/2)^2
Factoring the LHS gives
(x+2)^2=10
Finding square roots on both sides:
x+2=square root of 10
x+2= +3.1623 or - 3.1623
x=3.1623-2
=1.16
or
x= -3.1623 - 2
= - 5.16
Ответ:
Now for f(x) = 4, we need to find any x-coordinates such that y-coordinates is 4.
There are two possible x = -8 and x = 8
So x = -8, 8
Hope this helps.