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!
