3 years ago

Solve by completing the square x^2+6x=3

Mathematics

1 answer:

scoundrel [369]3 years ago

4 0

Answer:

x=-2√3 -3, 2√3 -3

Step-by-step explanation:

x^2+6x=3

x^2+6x+9=3+9

(x+3)^2=12

x+3=±√12

1). x+3=√12

x+3=2√3

x=2√3 -3

2). x+3=-√12

x=-2√3 -3

You might be interested in

Helppppp pleaseeee!!!!!!

maks197457 [2]

I got 3.825

your equation would be
(2x-1)(x+7)=72

when you distribute youd get
2x^2 +13x -7 =72

move the 72 over giving you
2x^2 +13x -79=0

i used the quadratic formula and the answer would be 3.825 because a negative answer wouldn’t make sense in this situation

5 0

3 years ago

Question 4 (1 point)

Nimfa-mama [501]

Answer:

where is the diagram for the question?

8 0

3 years ago

If the sum of seven odd consecutive numbers is 231, find the middle number.

qaws [65]

This is your answer, good luck buddy