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Drupady [299]
3 years ago
15

(x²-7x+4)-(-x²+5x+1) standard form​

Mathematics
1 answer:
Nata [24]3 years ago
3 0

Answer:

2x2-12x+3

Step-by-step explanation:

(x2-7x+4)-(-x2+5x+1)

x2-7x+4+x2-5x-1

2x2-12x+3

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What is the completely factored form of d4 -8d2 + 16
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According to Vieta's Formulas, if x_1,x_2 are solutions of a given quadratic equation:

ax^2+bx+c=0

Then:

a(x-x_1)(x-x_2) is the completely factored form of ax^2+bx+c.

If choose x=d^2, then:

\displaystyle x^2-8x+16=0\\\\x_{1,2}= \frac{8\pm  \sqrt{64-64} }{2}=4

So, according to Vieta's formula, we can get:

x^2-8x+16=(x-4)(x-4)= (x-4)^2

But x=d^2:

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Answer:

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Step-by-step explanation:

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6 0
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ss7ja [257]

Answer:

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Step-by-step explanation:

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<h3><u>Hence </u><u>there</u><u> </u><u>are</u><u> </u><u>1</u><u>2</u><u>0</u><u> </u><u>ways</u><u> </u><u>by</u><u> </u><u>which </u><u> 5 friends sit together at the movies in 5 seats</u><u>. </u></h3>
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The answer I think should be
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