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

Question

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

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Doris 2 weeks 2021-07-19T17:15:04+00:00 1 Answers 1 views 0

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    2021-07-19T17:16:58+00:00

    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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