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dlinn [17]
3 years ago
14

What number should be added to the expression x^2 + 4x to change it into a perfect square trinomial?

Mathematics
2 answers:
Schach [20]3 years ago
8 0
X^2 + 4x
the number to be added is found by dividing the constant of x by 2
 and squared the number
so # to be added =  ( 4/2)²  =  4
the perfect square trinomial is
x² + 4x + 4    =    (x + 2 )²    which is a perfect square trinomial
I hope this help you
tiny-mole [99]3 years ago
3 0
He number that must be added is four because (x+2)^2=x^2+4x+4
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Dmitry_Shevchenko [17]
<span>Consider the remainder of the division of the power exponent of i by 4.
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Answer:
\boxed{- 6 - 4i}

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5 0
3 years ago
Which of the following sets represents MUN?
Anuta_ua [19.1K]

Answer:

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Explanation:

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The circle on the left of diagram shows that the elements inside the set M are 3, 4, 7 and 9.

The circle on the right of the diagram shows that the elements inside the set N are 4, 6 and 7.

The complete list of the numbers in either M or N is 3, 4, 6, 7, and 9 (you must not repeat the elements that belong to both sets but indicate them just once.

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7 0
3 years ago
Find the value of x. Leave your answer in simplest radical form. The chord measures 14, the diameter measures 18. Hint: use pyth
ehidna [41]

Answer:

x = 4√2

Step-by-step explanation:

<u><em>Find the value of x. Leave your answer in simplest radical form. The chord measures 14, the diameter measures 18. Hint: use pythagorean theorem</em></u>

To solve, we will follow the steps below:

using Pythagoras theorem

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subtract 196 from both-side of the equation

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x = 4√2

8 0
3 years ago
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