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3 years ago

How to factor 18a2+6a5-8a3

Mathematics

1 answer:

Zielflug [23.3K]3 years ago

7 0

Answer:

$2a^2(3a^3-4a+9)$

Step-by-step explanation:

You could change the equation to this: $6a^3a^2-8a^1a^2+18a^2$

*This is the exact same as $18a^2+6a^5-8a^3$

You can continue to break this down until you get:

$2*3a^3a^2-2*4a^1a^2+2*9a^2$

*This too = $18a^2+6a^5-8a^3$

With this new equation, you can cancel out the common term: $2a^2$

You come up with my answer.

<em>Hope this helps!!</em>

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OLEGan [10]

<h2>Explanation:</h2>

The complete question is in a comment above. The statements says that:

Sean wrote the equation $9.25=5m$
$m$ is the cost per pound.
The equation show the relationships between the total cost, $9.25, and the number of pounds of pears.

So we are asked to write an write an equation to show the cost y of x pounds of pears. In other words, we need to write an equation such that y is given in terms of x, where x is the pounds of pears. So:

$y=f(x)$

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So choosing the number of pounds as 0, 1, 2, 3, 4, 5, the table would be:

$\begin{array}{cc}x(\text{Number of pounds}) & y(\text{Cost in dollars})\\0 & 0\\1 & 1.85\\2 & 3.7\\3 & 5.55\\4 & 7.4\\5 & 9.25\end{array}$

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