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sweet-ann [11.9K]
3 years ago
15

Factor the expression. 15n−18

Mathematics
2 answers:
boyakko [2]3 years ago
8 0
Factor <span>15n−18
</span><span>15n−18
</span><span>=<span>3<span>(5n−6<span>)

</span></span></span></span>3<span>(5n−6<span>)

5n-18 factored is </span></span>3<span>(5n−6<span>)</span></span>
seraphim [82]3 years ago
6 0

For this case we have the following expression:

15n-18

We look for the factors of each coefficient.

We have then:

15 = 1,3,5,15\\18 = 1,2,3,6,9,18

Taking the biggest common factor we have:

15n-18 = 3 (5n-6)

Therefore, the factored expression is given by:

3 (5n-6)

Answer:

the factored expression is given by:

3 (5n-6)

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Answer:

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Step-by-step explanation:

Hello,

First of all, let's check the denominator.

x^2-x-6 \ \ \text{ *** How to factorise it ...? ***}\\\\\text{*** The product of the roots is -6=-2*3 and their sum is 1 ***}\\\\x^2-x-6=x^2-3x+2x-6=x(x-3)+2(x-3)=(x+2)(x-3)

Now, let's see the numerator.

x^2+8x+4 \ \text{ *** -2 is not a zero as ***}\\\\(-2)^2+8*(-2)+4=4-16+8=-4\\\\\text{*** 3 is not a zero as ***}\\\\3^2+8*3+4=9+24+4=37\\

So we cannot factorise the numerator with (x+2) or (x-3)

Then, -2 and 3 are the the discontinuities of the expression.

There is only -2 in the list, this is the correct answer.

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Step-by-step explanation:

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