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anonymous
 one year ago
s/s^2+6s+9
+
5/s^2+4s+3
solve it
anonymous
 one year ago
s/s^2+6s+9 + 5/s^2+4s+3 solve it

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phi
 one year ago
Best ResponseYou've already chosen the best response.1you only "solve" equations (which have an equal sign in them) do you mean add and simplify?

phi
 one year ago
Best ResponseYou've already chosen the best response.1you 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 ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0im horrible at algebra but i can try

phi
 one year ago
Best ResponseYou've already chosen the best response.1when 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.

phi
 one year ago
Best ResponseYou've already chosen the best response.1one 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.

phi
 one year ago
Best ResponseYou've already chosen the best response.1next, 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.
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