Which expression is equivalent to 3.5x + 1.5x + 2 -1/2

1 answer:

7 0

Given:
3.5x + 1.5x + 2 -1/2

Add like terms: 3.5x+1.5x= 5x
5x+ 2 - 1/2
Find the LCD.
LCD= 2

Adjust LCD with fractions.
(10x+4-1)/2
=10x/2+3/2
=5x + 1.5

Answer: 5x + 1.5

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(3x²+4x-1) + (-2x²-3x+2)

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(3x²+4x-1) + (-2x²-3x+2)

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2 years ago

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Shortern this expression pls

pogonyaev

Answer:

$c =\frac{8}{3}$

Step-by-step explanation:

Given

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}}$

Required

Shorten

We have:

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}}$

Rationalize

$c = \sqrt{\frac{4 + \sqrt 7}{4 - \sqrt 7} * \frac{4 + \sqrt 7}{4 + \sqrt 7}} + \sqrt{\frac{4 - \sqrt 7}{4 + \sqrt 7}*\frac{4 - \sqrt 7}{4 - \sqrt 7}}$