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svp [43]
2 years ago
15

SUBJECT: Algebra LESSON: Multiplying Polynomials (x^3 + 2x − 3)(x^4 − 3x^2 + x)

Mathematics
1 answer:
NNADVOKAT [17]2 years ago
7 0

Answer:

Step-by-step explanation:

(x^3 + 2x − 3)(x^4 − 3x^2 + x)

Multiply each value of 2nd bracket with 1st bracket:

=x^4(x^3 + 2x − 3) - 3x^2(x^3 + 2x − 3) +x(x^3 + 2x − 3)

=x^7+2x^5-3x^4-3x^5-6x^3+9x^2+x^4+2x^2-3x

Now combine the terms with same power:

=x^7-x^5-2x^4-6x^3+11x^2-3x

You can also  take the common from the expression:

x(x^6-x^4-2x^3-6x^2+11x-3)....

The product of (x^3 + 2x − 3)(x^4 − 3x^2 + x) is x(x^6-x^4-2x^3-6x^2+11x-3)....

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The mean survivial time after diagnosis for a certain disease is 15 years with a standard deviation of 5 years. Based on a parti
frutty [35]

Answer:

The time the patient expected to survive after diagnosis is 29 years.

Step-by-step explanation:

It is provided that the mean survival time after diagnosis for a certain disease is 15 years with a standard deviation of 5 years.

That is,

\mu=15\\\sigma=5

An individual's predicted survival time is <em>a</em> = 2.8 standard deviations beyond the mean.

Compute the time the patient expected to survive after diagnosis as follows:

X=\mu+a\sigma

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Thus, the time the patient expected to survive after diagnosis is 29 years.

5 0
3 years ago
Solve y = x + 8 for x.<br> x = y + 8<br> x = y - 8<br> X = -y + 8<br> X = -V +8
JulijaS [17]

Answer:

y = x + 8

Step-by-step explanation:

7 0
2 years ago
25 is 36% of what number
ch4aika [34]

Answer:

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Step-by-step explanation:

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or, 36/100 × x = 25

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4 0
1 year ago
Solve this polynomial:
irina [24]

Answer:

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Step-by-step explanation:

Remove unnecessary parentheses:

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Connect like terms:

-4r²+s²-4s²

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-4r²-3s²

Solution:

-4r²-3s²

6 0
2 years ago
Read 2 more answers
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Answer:

Step-by-step explanation:

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