Cameron wants to measure a poster frame but he only has a sheet of paper that is 81/2 by 11 inches

Cameron wants to measure a poster frame, but he only has a sheet of paper that is 8 1/2 b 11 inches

he lays the long edge of the paper along the long edge of the frame several times and finds the frame is 4 papers long how long is this in inches

Step-by-step explanation:

Given.

The long edge of the paper is 11 Inches.

And Short edge or width of the paper is

According to question, he lays the long edge of the paper along the long edge of the frame several times and finds the frame is 4 papers long.

The long edge is 11 inches.

The long edge of the poster frame is four times of long edge of the paper that is  =

Hence the long edge of the poster frame is

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a