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larisa86 [58]
3 years ago
15

y = x^{4} - x^{3} - 28x^{2} - 20x + 48 How many possible negative real zeros, positive real zeros, and non-real zeros does this

equation have?
Mathematics
1 answer:
OleMash [197]3 years ago
3 0
f(x)= x^{4} - x^{3} - 28x^{2} - 20x + 48

There are two changes of sign, so there are 2 or 0 possible positive roots.

f(-x)= x^{4} +x^{3} - 28x^{2}+ 20x + 48

There are two changes of sign, so there are 2 or 0 possible negative roots.

There are 4,2 or 0 possible non-real roots.
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Step-by-step explanation:

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Nonamiya [84]

Given:

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To find:

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Let x be the missing length.

Basic proportionality theorem(BPT): According to this theorem, if a line is parallel to the one side of a triangle then that the line intersects the other two sides of the triangle in the same ratio.

Using Basic proportionality theorem, we get

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3 0
2 years ago
Need this ASAP Please
Naily [24]

Answer:

To be Honest I kinda do know but I can solve the equation for you if that helps

Step-by-step explanation:

5x+15y-6 is the answer

first you will add all of them and then distribute

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Group like terms

=3x+2x+15y-18+6+6

Add similar elements

=5x+15y-18+6+6

Finally Add/Subtract the numbers

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2 years ago
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