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Tatiana [17]
2 years ago
8

Use the grouping method to factor the polynornial below com 3x + 9x² + 4x+12

Mathematics
1 answer:
ch4aika [34]2 years ago
5 0

Add 3x and 4x.

9x^2 +7x +12

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The set is not closed

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-4 * -3 = 12  this is not a negative integer

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Tell whether the sequence is arithmetic. If it is, identify the common difference.
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Yes, it is arithmetic with the common difference 2.

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8 0
2 years ago
Which equation would best help solve this problem? Five added to 3 times a number is equal to 8 less than 5 times the number.
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\hbox{five added to 3 times a number = to 8 less than 5 times the number} \\\\ \implies \boxed{5+3x=8-5x}
4 0
3 years ago
Given: mAngleTRV = 60° mAngleTRS = (4x)° Prove: x = 30 3 lines are shown. A line with points T, R, W intersects with a line with
zmey [24]

The reason behind the statement m∠TRS + m∠TRV = 180° is; Angle Addition Postulate

<h3>How to use angle addition postulate?</h3>

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From the attached image, we want to prove that x = 30°.

Now, T is the interior of straight angle ∠VRS.

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Thus, from angle addition postulate, we can say that;

m∠TRS + m∠TRV = 180°.

Read more about two column proofs at;brainly.com/question/1788884

#SPJ1

7 0
1 year ago
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