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Archy [21]
3 years ago
9

How do I factor 2x^3−18x and x ^3+6x^2+8x

Mathematics
1 answer:
Nana76 [90]3 years ago
4 0

Answer:

2x(x − 3)(x + 3)

x(x + 4)(x + 2)

Step-by-step explanation:

2x³ − 18x

x(2x² − 18)

2x(x² − 9)

2x(x − 3)(x + 3)

x³ + 6x² + 8x

x(x² + 6x + 8)

x(x + 4)(x + 2)

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The simplified version of this equation is

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3 years ago
A hot-air balloon is moving on a bearing of 2450 at 31mph. A wind is blowing with the bearing of 2600 at 23mph. Find the compone
Alborosie

Answer:

V=(54i) \ mph

Step-by-step explanation:

According to the problem, the hot-air ballon and the wind are movind in the same direction, which means the component form of the velocity of the ballon is the net vector between both velocities.

Basically, the net velocity is

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4 0
4 years ago
Read 2 more answers
A) show that $n(2n + 1)(7n + 1)$ is divisible by 6 for all integers $n$.
goldenfox [79]
Hi,

A)
\dfrac{n(2n+1)(7n+1)}{6} \\

= \dfrac{14n^3+9n^2+n}{6} \\

= \dfrac{12n^3+6n^2}{6} + \dfrac{2n^3+3n^2+n}{6} \\

=2n^3+n^2+ \dfrac{n(2n^2+3n+1)}{6} \\

= 2n^3+n^2+ \dfrac{n(n+1)(2n+1)}{6} \\

= 2n^3+n^2+ 1^2+2^2+3^2+...+n^2\ is\ an\ integer.


B)
Only if n=4*k or n=4*k+1 , k beeing an integer.

8 0
3 years ago
the b-clean car wash washed 128 cars in 3 hours. at that rate, how many cars can they wash in 8 hours?
sukhopar [10]
You have to divide 128 by 8 and you will get 16. So the answer is 16
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Find the distance between points P(7,9) and Q(2, -3) to the nearest tenth.
shtirl [24]

Answer:

I think 26. pls give me brainliest.

5 0
3 years ago
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