3 years ago

How do you solve 4x^2+20x+25=0 by completing the square

1 answer:

svlad2 [7]3 years ago

3 0

(2x+5)(2x+5)= 0

2x+5=0. 2x+5=0

x= -5/2, x= -5/2

You might be interested in

Liono4ka [1.6K]

Compute the sum to simplify C :

$C = \begin{bmatrix}16-0.5 & 9+0 \\ -3+5 & 0 + 8 \\ 4-3 & -10+14\end{bmatrix} = \begin{bmatrix}15.5 & 9 \\ 2 & 8 \\ 1 & 4\end{bmatrix}$

Now, $c_{ij}$ is the entry of the matrix in row i and column j, so

$C = \begin{bmatrix}15.5 & \boxed{9} \\ 2 & 8 \\ 1 & 4\end{bmatrix} \implies c_{12} = 9$

$C = \begin{bmatrix}15.5 & 9 \\ 2 & 8 \\ \boxed{1} & 4\end{bmatrix} \implies c_{31} = 1$

$C = \begin{bmatrix}15.5 & 9 \\ 2 & \boxed{8} \\ 1 & 4\end{bmatrix} \implies c_{22} = 8$

5 0

1 year ago

Semenov [28]

Answer:

Co me he re tjyvynoqtu guys

5 0

3 years ago

kirill [66]

I got 21, I give up.

6 0

2 years ago

goblinko [34]

Answer:

The answer is first one.

Step-by-step explanation:

4 0

2 years ago

RSB [31]

Answer:

4.0503

Step-by-step explanation:

5 0

3 years ago