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Hatshy [7]
3 years ago
6

Add. (2x + 5) + (3x - 7) A) x - 2 B) x + 2 C) 5x - 2 D) 5x + 2

Mathematics
2 answers:
MrRissso [65]3 years ago
8 0
5x - 2. Just combine like terms, and distribute the + to the second term. 
iVinArrow [24]3 years ago
8 0

Answer:

C) 5x - 2

Step-by-step explanation:

When parentheses are preceded by a + sign, they may be immediately removed. Two additions and one subtraction are called for here: 2x + 5 + 3x - 7. This is 5x - 2.

(2x + 5) + (3x - 7)

2x + 5 + 3x - 7

2x + 3x - 7 + 5

<u>5x - 2</u>.

<h2>Hope this helps!!!</h2>
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The given differential equation is

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Expanding and rearranging terms, we get

<em>x</em> ² <em>y'</em> + 3<em>xy</em> = cos(<em>x</em>) + <em>x</em> ⁴

Multiply both sides by <em>x</em>, which is motivated by the fact that (<em>x</em> ³)<em>'</em> = 3<em>x</em> ².

<em>x</em> ³ <em>y'</em> + 3<em>x</em> ²<em>y</em> = <em>x</em> cos(<em>x</em>) + <em>x</em> ⁵

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Integrate both sides with respect to <em>x</em> :

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