X² + 32= 21
need in next 5 mins

x = ±√-11

Step-by-step explanation:

x² + 32 = 21

subtract 32 from both sides

x² = -11

take the square root

x = ± √-11

Hope this helps, if not let me know.

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

square root

step-by-step explanation: