2 years ago

5x4 – 7x3 – 5x2 + 5x + 1 = 0

Mathematics

1 answer:

olya-2409 [2.1K]2 years ago

5 0

20 - 21 - 10 + 5x +1= 0
5x = 10
x = 2

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Who started the problem correctly? The problem form is (-5) - (-1 3/4).

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Answer:

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Step-by-step explanation:

We are given problem (-5) - (-1 3/4).

Mariah started the problem as (-5) + 1 - 3/4

Shane started the problem as (-5) + 1 + 3/4

We need to find who started the problem correctly.

The problem should be started by converting the mixed fraction into improper fraction i,e

$-5-(-1\frac{3}{4})\\=-5-(-1-\frac{3}{4} )\\=-5-(-\frac{7}{4})$

Now we will solve bracket by multiplying -1 with term inside the bracket i.e

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Let's compare both the procedures now:

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Therefore, Mariah did not start the problem correctly.

Shane:

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$= -5 + \frac{7}{4}$

$= \frac{-13}{4}$

Therefore, Shane started the problem correctly.

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2 years ago