Simplify the following expressions:

(i) (x + y + z)(x + y – z)​

Simplify the following expressions:

(i) (x + y + z)(x + y – z)​

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1 thought on “Simplify the following expressions:<br /><br />(i) (x + y + z)(x + y – z)​”

  1. Answer:

    Expand

    (

    x

    +

    y

    +

    z

    )

    (

    x

    y

    z

    )

    by multiplying each term in the first expression by each term in the second expression.

    x

    x

    +

    x

    (

    y

    )

    +

    x

    (

    z

    )

    +

    y

    x

    +

    y

    (

    y

    )

    +

    y

    (

    z

    )

    +

    z

    x

    +

    z

    (

    y

    )

    +

    z

    (

    z

    )

    Simplify terms.

    Tap for more steps…

    x

    2

    y

    2

    y

    z

    z

    y

    z

    2

    Subtract

    z

    y

    from

    y

    z

    .

    Tap for more steps…

    x

    2

    y

    2

    2

    y

    z

    z

    2

    Reply

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