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Mathematics 20 Online
OpenStudy (anonymous):

factor 10x^2-7x-6

OpenStudy (mathstudent55):

1. Try to factor a common factor. Is there one?

OpenStudy (anonymous):

Do you mean you are trying to factor out a number from all 10, -7, and -6 ?

OpenStudy (anonymous):

but im lost now

OpenStudy (mathstudent55):

Good so far. Now factor by grouping. Factor a common factor out of the first two terms. Factor a common factor out of the last two terms.

OpenStudy (anonymous):

1ox^2-12x+5x-6

OpenStudy (anonymous):

2x(5x_6)+(5x-6)

OpenStudy (mathstudent55):

Good.

OpenStudy (anonymous):

but now what

OpenStudy (mathstudent55):

Yes, I understand. Now factor out the (5x - 6) factor.

OpenStudy (mathstudent55):

It may be helpful to rewrite as: 2x(5x - 6) + 1(5x - 6)

OpenStudy (anonymous):

apparently i have the concept but sont understand that step

OpenStudy (mathstudent55):

I'll draw it for you. A visual may help.

OpenStudy (mathstudent55):

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