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2007-01-16 06:50:07 · 6 answers · asked by l.l.k 1 in Science & Mathematics Mathematics

6 answers

2xy-12xz+3y-18z= -6z(2x+3)+y(2x+3)=(2x+3)(y-6z)

2007-01-16 07:01:11 · answer #1 · answered by Anonymous · 0 1

Group and factor and inspect.

Note that in the first 2 terms, you can factor out x and a factor with a y and a z.

And the 3rd and 4th term have a y and z term. This gives you a clue that they can have a common factor by inspection

as, 2x(y-6z) + 3(y-6z).. Now since y-6z is a common factor,

you can rewrite it as (y-6z) (2x +3).

Now, it is always a good idea to check your work by FOILing. You should get the original expression.

2007-01-16 15:07:28 · answer #2 · answered by Aldo 5 · 0 0

By GRouping ( put two sets to a group - get two groups)

(2xy-12xz)+(3y-18z)
2x(y-6z)+3(y-6z)

Pull common factor (y-6z)

(2x+3)(y-6z)

2007-01-16 15:03:22 · answer #3 · answered by Anonymous · 0 0

Start by factoring a 2x out of the first two terms:
2x(y - 6z) + 3y - 18z

Now factor a 3 out of the last two terms:
2x(y - 6z) + 3(y - 6z)

Now notice the common (y - 6z) and factor that out:
(2x + 3)(y - 6z)

2007-01-16 14:54:44 · answer #4 · answered by Puzzling 7 · 0 0

group into 2 groups

(2xy + 3y) - (12xz + 18z)

fator out the commons,

y(2x + 3) - 6z(2x + 3)

(2x + 3) is now the common, factor it out

therefore,

(2 - 6z) ( 2x + 3). Ans.

2007-01-16 14:58:57 · answer #5 · answered by Cu Den 2 · 0 2

Here, you have a potential pattern in the four terms some multiple of y - some multiple of z, some multiple of y - some multiple of z. So let's find the multiples in that pattern. 2x divides both of the first terms, and 3 divides both of the latter terms. putting this together, your expression reads:

2x(y-6z) + 3(y-6z).

Now, we see that (y-6z) divides the entire expression, and the complete factorization is:

(2x+3)(y-6z).

2007-01-16 15:04:36 · answer #6 · answered by math grad student 1 · 0 1

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