What is the square root of 422

20.5426 (rounded to nearest 0.0001)

Step-by-step explanation:

Square roots can't be really be explained, but there is one think you should know. 422 is 22 more than 400, which is greater than what would be the halfway point (20.5 ^ 2 = 420.25), so √422 is greater than 20.5, but not greater than 20.55 (20.55 ^ 2 = 422.3025). However, it is close to 20.55 though. Thus, you can conclude √422 is about 20.5426.

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

i think it is 18

step-by-step explanation: