3 years ago

Solve the quadratic equation by completing the square. =+x^2+16x +61=0

1 answer:

3 0

X^2 + 16x + 61 = 0
x^2 + 16x = -61
x^2 + 16x + 64 = -61 + 64
(x + 8)^2 = 3
x + 8 = (+-) sqrt 3
x = -8 (+-) sqrt 3

x = -8 + sqrt 3...and x = -8 - sqrt 3 <== ur solutions

You might be interested in

Can you please explain how to do this ..... a<4.7;a=5

Natali5045456 [20]

Answer:

4.7= r/5

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

If 6 times a number = 3 times the same number,<br> that number must be this.

telo118 [61]

The number must be 0, because any other number would multiply to a different product.

7 0

2 years ago

-1 and 1/4th divided by - 1/2

omeli [17]

Answer: 2

Step-by-step explanation:

5 0

3 years ago

Shawna wants to find a carton large enough to hold 12 plastic shoe boxes that measure 14 inches long by 5 inches high by 6 inche

Gnoma [55]

Answer:

I need sum more detail to answer just email me and we can get this dun.

Step-by-step explanation:

8 0

3 years ago

Solve the system of equations:<br> y = 3x<br> y=x2-4

Lubov Fominskaja [6]

Answer:

x = -4

y = -12

Step-by-step explanation:

Since y is 3x,

3x = 2x - 4

On solving we get x as -4

Substitute x and we get y as -12

3 0

3 years ago

Read 2 more answers