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3 years ago

if the width of a football field is (x-3) and the length is (4x-3), what is the area? need before 1:40 on 3-19-2021

Mathematics

1 answer:

Marrrta [24]3 years ago

7 0

Answer:

4x² - 15x + 9

Step-by-step explanation:

To find the area of a rectangle, you multiply the length by the width.

length: 4x - 3

width: x - 3

Multiply these expressions.

(4x - 3)(x - 3)

To multiply two binomials, you want to FOIL them

FOIL: first | outer | inner | last

(4x - 3)(x - 3)

F: 4x • x = 4x²

O: 4x • -3 = -12x

I: -3 • x = -3x

L: -3 • -3 = 9

Combine these values.

4x² - 12x - 3x + 9

Combine the variables that can be combined.

4x² - 15x + 9

This is the area as an expression.

Hope this helps!

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