Use "complete the square" to find the missing value: x^2-18x+

81

Step-by-step explanation:

x^2 - 18x +

to find the blank

take (b/2) ^2

where b is the coefficient on the x term

(-18/2) ^2

9^2

81

add 81

option 1

data plot with   3 dots over 33, 1 dot over 34, 2 dots over 35, no dot over 36, 1 dot over 37, 2 dots over 38, 4 dots over 39, and 2 dot over 40.

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5