Solve the equation by completing the square. Round to the nearest hundredth if necessary. x^2+2x=17

1 answer:

4 0

We have that
x²+2x=17
Group terms that contain the same variable
(x²+2x)=17
Complete the square. Remember to balance the equation
(x²+2x+1)=17+1

Rewrite as perfect squares

(x+1)²=18

x+1=(+/-)√18

x=(+/-)√18-1

x1=√18-1----> 3.24

x2=-√18-1----> -5.24

the answer is

the option

4.) 3.24, –5.24

You might be interested in

8. Find the values of angles x, y,

Eddi Din [679]

Answer:

option A

Step-by-step explanation:

option A is the correct answer of this question.

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you 

8 0

3 years ago

Read 2 more answers

Need help on this one question please

Elan Coil [88]

P(x, y) Q(x,y)
P(-2, -1) start at 0. Go to the left two squares, then go down 1 square. mark a point there
Q(2, 4) start at 0. Go to the right two squares, go up 4 squares. mark a point there.
connect two points
make a right triangle
Then use the pythereom
$4^{2} + 5^{2} = (PQ)^{2}$
$41 = (PQ)^{2}$
$\sqrt{41} = PQ$