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iren [92.7K]
3 years ago
12

B)[3x-7)2 by using identities note:the 2 is a square

Mathematics
1 answer:
Temka [501]3 years ago
3 0

Answer:

9x² - 42x + 49

Step-by-step explanation:

Given

(3x - 7)² = (3x - 7)(3x - 7)

Each term in the second factor is multiplied by each term in the first factor, that is

3x(3x - 7) - 7(3x - 7) ← distribute both parenthesis

= 9x² - 21x - 21x + 49 ← collect like terms

= 9x² - 42x + 49 ← in expanded form

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oksian1 [2.3K]
The answer is B

If you move the decimal to two digits to the right, you will get 98.345.

4 0
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Four squares Are cut from the corners from a 20 cm by 24 cm rectangular sheet of tin. The sides are then bent up to make a pan.
Gelneren [198K]

Squares are cut from the corner, so we are left with only one variable.

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Let's call the sides of the removed squares "x"

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7 0
4 years ago
A cup and saucer cost $3.10 at the local store. The cup costs $2.00 more than the saucer. How much does each cost?
AlekseyPX

Answer: cup is $2.55

Saucer $0.55

Step-by-step explanation:

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Let the cup be x

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Step-by-step explanation:

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