Arectangle has a height of x and a width of 7x-4

The area of the entire rectangle is  .

Step-by-step explanation:

Given : A rectangle has a height of x and a width of 7x – 4.

To find : Express the area of the entire rectangle ?

Solution :

The height of the rectangle l=x.

The width of the rectangle b=7x-4.

The area of the rectangle is

Therefore, the area of the entire rectangle is  .

length is 7 times the width

Step-by-step explanation:

720

step-by-step explanation:

first i did work 2nd i did work and 3rd i did work

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