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Mathematics 17 Online
OpenStudy (anonymous):

Choose two trinomials from the list below to factor. Using complete sentences, explain how to factor each one. Be sure that the final factorization (or "answer") is a part of your explanation. 2x2 + 13x + 15 2x2 + 27x + 13 5x2 − 2x − 7 10x2 − 7x − 3 8x2 − 11x + 3

OpenStudy (anonymous):

@Mertsj please help

OpenStudy (mertsj):

You've got to pick one first.

OpenStudy (anonymous):

Which will be the fastest?

OpenStudy (anonymous):

Dont want to sound lazy but I need to get this question done /:

OpenStudy (mertsj):

Generally small numbers are easier.

OpenStudy (mertsj):

Multiply 5 and -7.

OpenStudy (mertsj):

Think of factors of -35 whose sum is -2

OpenStudy (mertsj):

For example: Factors of 12 whose sum is 7 are 4 and 3

OpenStudy (mertsj):

Because 4 times 3 = 12 and 4+3=7

OpenStudy (mertsj):

Now you find factors of -35 whose sum is -2

OpenStudy (anonymous):

by* not b

OpenStudy (mertsj):

7 times 5 is NOT -35

OpenStudy (mertsj):

And 7+5 is 12 NOT -2

OpenStudy (anonymous):

Sorry I just cant find the answer

OpenStudy (mertsj):

Write down all the factors of -35 I'll get you started:

OpenStudy (mertsj):

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