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Algebra 10 Online
OpenStudy (anonymous):

s/s^2+6s+9 + 5/s^2+4s+3 solve it

OpenStudy (phi):

you only "solve" equations (which have an equal sign in them) do you mean add and simplify?

OpenStudy (anonymous):

yes, sorry lol

OpenStudy (phi):

you have two fractions. to add fractions you need a common denominator. to find the simplest common denominator I would first try to factor both denominators. For example, can you factor s^2+6s+9 ?

OpenStudy (anonymous):

im horrible at algebra but i can try

OpenStudy (anonymous):

6s^3+9?

OpenStudy (phi):

when you see something like s^2+6s+9 you should think: can I write this as (s+a)(s+b) ? where a and b are numbers.

OpenStudy (phi):

one strategy to factor is to first look at the last number, the +9 the + means both factors (i.e. the a and b in (s+a)(s+b) are the same sign) for the 9, list all ways to multiply 2 numbers to get 9: 1,9 3,3 are the only choices.

OpenStudy (phi):

next, look at the middle number, the +6 from s^2+6s+9 the + sign in front of the 6 means the biggest factor of a and b is positive. from the first rule (up above) we know both are the same sign. so if one is positive and both have the same sign , both are positive. now go to our list 1,9 3,3 assign both a positive sign and add 1+9= 10 3+3= 6 if any pair matches the +6 from the middle term, those are the factors.

OpenStudy (phi):

can you factor s^2+6s+9 ?

OpenStudy (phi):

too confusing ?

OpenStudy (anonymous):

kinda

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