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BaLLatris [955]
2 years ago
14

what number should be added to the expression x squared+2x to change it into a perfect square trinomial?

Mathematics
2 answers:
Olin [163]2 years ago
7 0
The perfect square trinomial​ (x + 1)² equals
x² + 2x + 1

Therefore the answer is to add 1 to the expression.

Good luck
Nookie1986 [14]2 years ago
3 0
You know that a perfect square trinomial is given by square of first term, twice the product of first and last terms and square of second term

So we have x^2 that is square of x, 2x that is twice the product of x*1, the second term shoulf be 1, that is square of 1

So your answer would be 1

If you try (x+1)^2 = x^2+2x+1
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Answer:

9

Step-by-step explanation:

Radius = x

The triangle in the given image is a right angled triangle.

By Pythagoras theorem,

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x² - x² = 36 - 144 + 12x

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3 0
3 years ago
Need help pls I have the answer but have to show my work
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3 0
3 years ago
How does an earthquake of magnitude 7.9 compare in intensity with an earthquake of magnitude of 3.7 on the Richter​ scale? The l
Andre45 [30]
We are required to compare the magnitude for two earthquake intensity:
the larger intensity is 7.9
the smaller intensity is 3.7
thus the ratio of the intensity will be:
(larger intensity)/(smaller intensity)
=7.9/3.7
=2.135
~2 
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5 0
3 years ago
Need help question 11
Helga [31]
I am sorry i dont understand

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2 years ago
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Pani-rosa [81]

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