Question

solve by factoring:
4x^2=-4x-1

Answer 1

Add both sides by 4x+1.

Answer 2

okay so then you get 4x^2+4x+1=0 how do you factor this

Answer 3

@geerky42

Answer 4

To factor 4x^2 + 4x + 1, set up two sets of parentheses:
( )( )
On the left side of each you need two factors of 4x^2. Either 4x and x, or 2x and 2x. Let's try 2x and 2x
(2x )(2x )

Answer 5

On the right side of the parentheses, you need two factors of 1 which have to be 1 and 1:
(2x + 1)(2x + 1)
Now FOIL it to make sure it's right.

Answer 6

It is, thank youuuuuuuu, so that makes the answer 1/2 right

Answer 7

Be careful. Write it out.
(2x + 1)(2x + 1) = 0
2x + 1 = 0 or 2x + 1 = 0
Subtract 1 from both sides. What do you get?

Answer 8

i got -1/2

Answer 9

Better.

Answer 10

oh 2x = -1

Answer 11

okay thank you

Answer 12

right, so when you now divide both sides by 2 you get x = -1/2