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Kristy143SIO
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What is the simplified form of x3/x^2+x12 multiply x+4/x^2+8x+16
 2 years ago
 2 years ago
Kristy143SIO Group Title
What is the simplified form of x3/x^2+x12 multiply x+4/x^2+8x+16
 2 years ago
 2 years ago

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Avva Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ x3 }{(x3)(x+4) } * \frac{ x+4 }{(x+4)^{2} }\] after simpilyfying this will be equal to \[\frac{ 1 }{ (x+4)^{2} }\]
 2 years ago

Avva Group TitleBest ResponseYou've already chosen the best response.0
you know how did I factorize the equations right ?
 2 years ago

Kristy143SIO Group TitleBest ResponseYou've already chosen the best response.0
@Avva eh not really
 2 years ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.0
@Avva, no need to know how to factorise... its already done...
 2 years ago

Kristy143SIO Group TitleBest ResponseYou've already chosen the best response.0
@campbell_st so the answer is 1/(x+4)^2
 2 years ago

campbell_st Group TitleBest ResponseYou've already chosen the best response.0
I'll let you calculate it... by factoring the quadratics
 2 years ago

Avva Group TitleBest ResponseYou've already chosen the best response.0
well in this problem you can multiply the numerator and it will be simplified with the denominator first bracket leaving x^2+8x+16 but you might need factorization for solving other problems to solve any quadratic equation \[a x^{2} + b x +c =0\]you apply in this formula \[\frac{ b \pm \sqrt{b ^{2}4ac} }{2a }\] you may see nonfactorable equations (complex numbers it is OK if you haven't studied it yet) it will take you some time so you don't have to apply in the formula if you are given a simple equation try to figure it out without it e.g. \[x ^{2}x12 = 0\] so you ask yourself what are the two numbers say (m,n) m*n = 12 m+n=1 on practice you will be great at that sorry for talking a lot I 'll google a better way to solve quadratic equations and tell you :)
 2 years ago
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