Question

write a simplified polynomial expression in standard form to represent the area of the rectangle below.

A picture of a rectangle is shown with one side labeled as 2 x minus 4 and another side labeled as x plus 5

Answer 1

no idea where to start or what to do

Answer 2

area = b*H
so
you have
b= x + 5
h = 2x - 4
Area is then what?

Answer 3

(x+5)(2x-4) ?

Answer 4

Area is just b*h for rectangles.
You have your values.
Correct

Answer 5

Now expand them by using the FOIL method to get your answer.

Answer 6

ok so then i go:
2x^2 -4x+10x-20

Answer 7

yep now simplify

Answer 8

Then:
2x^2+6x-20

Answer 9

and thats final answer?

Answer 10

Correct, nice job :)

Answer 11

ok thnx :)

Answer 12

Nice profile pic :)