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Anna [14]
3 years ago
13

How do I write this expression:The quantity seven plus Z, squared

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
6 0

Answer:

  (7+Z)²

Step-by-step explanation:

A less ambiguous way to describe the quantity might be "the square of the quantity seven plus Z".

As it is, we rely on the presence of the comma to tell us that the quantity to be squared is (7+Z). If the comma were not present, we would assume you want to add 7 to the square of Z: 7+Z².

  the quantity 7 plus Z: (7+Z)

  that quantity squared: (7+Z)²

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Leftover Expression
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The second leftover expression is not o(a+b). It is 6(a + b). I have attached the correct question to depict that.

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The equivalent expressions are;

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Step-by-step explanation:

The two leftover expressions are given as;

2(4x + 1) and 6(a + b)

In algebra, equivalent expressions are simply those expressions which when simplified, give the same resulting expression as the initial one.

Thus simply means expanding or collecting like times to make it clearer.

Now, in our question, like terms have already been collected. This means that to find an equivalent expression, we will just expand the bracket.

Thus;

2(4x + 1) will be expanded by using the 2 outside the bracket to multiply the terms inside the bracket. This gives;

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Similarly,

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Thus;

The equivalent expressions are;

8a + 2 and 6a + 6b

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