What multiple of 8 isn't equivalent to 2

Which expression is equivalent to 2x^2+7x+4?

Terri makes a quilt using three sizes of fabric squares the side lenght of each fabric square is the square root of the area

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb