Need help on this question, The expression (2x+1)^2 -2(2x^2 -1) 1) 4x+3
2) 3x+3
3) 3
4) -1

1) 4x+3

Step-by-step explanation:

(2x+1)²-2(2x²-1)

((2x)²+2•2x+1)-(2•2x²-2)

(2²•x²+4x+1)-(4x²-2)

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.

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation: