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ella [17]
3 years ago
15

Choose the correct equivalent factored form for the expression below. X^4 – 121

Mathematics
1 answer:
VikaD [51]3 years ago
8 0

Answer:

(x^2+11)(x^2-11)

Step-by-step explanation:

You didn't list the options, but it should be:

(x^2 + 11) (x^2 - 11)

We use this formula: a^2 - b^2 = (a + b) (a - b)

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33

Step-by-step explanation:

3∙[ 9 – 2∙ (7 – 8)]

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3 0
1 year ago
Alang went to the store to buy some walnuts. The price per pound of the walnuts is $7 per pound and he has a coupon for $2.50 of
MA_775_DIABLO [31]

Answer:

$11.50 is the cost for 2 pounds of walnuts

Expression: 7p - 2.50

Step-by-step explanation:

First, create an expression to represent the cost:

7p will represent the cost, since the walnuts are $7 per pound, and 2.50 needs to be subtracted from this because of the coupon for $2.50 off

So, the expression is 7p - 2.50

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