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Raeee_009
 3 years ago
x^29x+20 factorise quadratics
Raeee_009
 3 years ago
x^29x+20 factorise quadratics

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nubeer
 3 years ago
Best ResponseYou've already chosen the best response.0familiar with quadratic formula?

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1this one can be factorized

hartnn
 3 years ago
Best ResponseYou've already chosen the best response.0can u factorize @Raeee_009 ?

hba
 3 years ago
Best ResponseYou've already chosen the best response.1Quadratic formula \[x=b \pm \sqrt{b^24ac}/2a\]

nubeer
 3 years ago
Best ResponseYou've already chosen the best response.0\[x = \frac{ b \pm \sqrt{b ^{2}4ac } }{ 2a}\] this is the quadratic formula now look at your equation it's x^29x+20 so a =1 ,b = 9 , c = 20 just plug in values you will get 2 values of x

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1yes  you asked about factoring quadratics factor to the form (x +/ a)(x +/ b)

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1to find a and b you need the product ad = +20 and sum = 9 can u think of 2 numbers which fit this requirement?

Raeee_009
 3 years ago
Best ResponseYou've already chosen the best response.0hmm.. still don't get it :(

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1so thats your values of a and b hba has illustrated the process in his drawing

Raeee_009
 3 years ago
Best ResponseYou've already chosen the best response.0ohh im understanding a bit now so is the answer (x4) (x+9)

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1hba  your method is slightly different to mine  true

hba
 3 years ago
Best ResponseYou've already chosen the best response.1I am talking about the answer she got ?

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.1oh yes  i misread it (x  4)(x  5) is correct solution a = 4 and b = 5 raee_009

hba
 3 years ago
Best ResponseYou've already chosen the best response.1@Raeee_009 Please see my illustration and try to learn ? Where are you getting confused ?

Raeee_009
 3 years ago
Best ResponseYou've already chosen the best response.0ohhhh! i get it now! thank you so much eveyone

Raeee_009
 3 years ago
Best ResponseYou've already chosen the best response.0one quick question does a + and  =  ?

hba
 3 years ago
Best ResponseYou've already chosen the best response.1Well (+)(+)=+ (+)()= ()()=+ Got it ?

Raeee_009
 3 years ago
Best ResponseYou've already chosen the best response.0so would x^26x7=(x7)(x+1)

hba
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1353603740199:dw @Raeee_009 Awesome :D
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