2 years ago

Solve x2 + 8x + 22 = 0 by completing the square.

Mathematics

1 answer:

Liula [17]2 years ago

6 0

Answer:

Step-by-step explanation:

the solution of a squared equation is

x = (-b ± sqrt(b² - 4ac)) / (2a)

in our case

a = 1

b = 8

c = 22

x = (-8 ± sqrt(64 - 88))/2 = (-8 ± sqrt(-24))/2 =

= (-8 ± sqrt(4×-6))/2 = (-8 ± 2×sqrt(-6))/2 =

= -4 ± sqrt(-6) = -4 ± i×sqrt(6)

You might be interested in

Dear LGBTQ+,

Soloha48 [4]

Ok ok ok ok ok ok ok ok

5 0

2 years ago

Read 2 more answers

Noam must share a cash prize equally among 4 winners. If each person receives $125, what is the amount of the prize

sertanlavr [38]

Answer:

c. 500

Step-by-step explanation:

125+125=250

250+125=375

375+125=500

5 0

2 years ago

Read 2 more answers

Can you describe multiplying and dividing signed numbers in the real world? plz Explain

elena-14-01-66 [18.8K]

The example I would be using is the level of a see-saw and take a point 1 /x of the way amid the middle and the left end. If you change the point vertically by f feet, the far right finish transfers vertically by f×−x feet. If you push down, f would be negative then you are multiplying two negative numbers for a positive result, this means that the other end moves up.

7 0

3 years ago

Can u guys help wit a little bit more questions what is 9.04-6.98

Goryan [66]

Answer:

9.04-6.98=2.06

4 0

2 years ago

There are 5 blue marbles, 11 green marbles and

Margarita [4]

Step-by-step explanation:

step by step by solutions are given