Mathematics: Factor completely. 8x^3-27. show solution with explanation.

Factor completely. 8x^3-27. show solution with

Ответ:

Jackie2088

31.12.2021

Here we are given
8x^3-27
now making both as a cube root
(2x)^3-(3)^3
using formula cube root
a^3-b^3=(a-b)(a^2+ab+b^2)
where
a=2x
b=3
now putting these values
2x^3-3^3=(2x-3)(2x^2+2x*3+3^2)
simplifying
2x^3-3^3=(2x-3)(4x^2+6x+9)
hence the right answer is
2x^3-3^3=(2x-3)(4x^2+6x+9)

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Ответ:

mlinares776

09.03.2020

Mathematics

Answer with explanation:

Speed

$=\frac{\text{Distance traveled}}{\text{Time taken}}$

When you will observe the graph

Time is represented on X axis

And , Distance traveled is represented on Y axis.

In 5 hours ,Henry travels a distance of 300 miles.

So, in 1 hour distance traveled by Henry

$=\frac{300}{5}\\\\=60$ miles

So, Speed of Henry

$=60 \frac{miles}{hour}$

Speed can be calculated by this method also

$=\frac{\text{Difference in two y values lying on the straight line}}{\text{Corresponding x values}}\\\\=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\=\frac{300-0}{5-0}\\\\=60 \frac{miles}{hour}$

Option D: 60 miles per hour

He graph shows the distance henry drives on a trip. what is henry’s speed

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Factor completely. 8x^3-27. show solution with explanation.

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