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GREYUIT [131]
3 years ago
6

Could someone explain why (-4)² is equal to 16 but -4² is equal to -16​

Mathematics
2 answers:
erica [24]3 years ago
8 0

Answer:

It's all about the brackets.

Step-by-step explanation:

If we do (-4)^2, the brackets make it -4 x -4 and the two negatives make a positive of 16.

If we do -4^2, that means that the 4 is squared before putting the minus sign there so you have 4x4 = 16 then put the minus to get -16.

Hope this helps!

treviglaslibrary

Afina-wow [57]3 years ago
4 0

Answer:

4^2= 16

Step-by-step explanation:

This is because when you square something your are multiplying that number by itself. So in this case you must multiply 4 x 4 which is sixteen. Another example of this is 3^2 which is 9. In this case you must multiply 3 x 3 which is nine.

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Answer:

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Step-by-step explanation:

Add one to both sides

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Answer:

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Step-by-step explanation:

Try two others that are given

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3 years ago
What is the solution to the system of equations?
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Step-by-step explanation:

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2 years ago
What is the solution to this system of linear equations? y − 4x = 7 2y + 4x = 2
erik [133]

━━━━━━━☆☆━━━━━━━

▹ Answer

<em>(-1, 3)</em>

▹ Step-by-Step Explanation

y - 4x = 7

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<u>Substitute</u>

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<u>Solve</u>

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<u>Substitute</u>

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<u>Solve</u>

x = -1

<u>Final Answer</u>

(x, y) = (-1, 3)

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Brainliest is greatly appreciated!

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Point to point indexed annuity.

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