Question

5x^2-2√15x+3=0 solve by factorisation method​

Answer 1

Answer:

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Step-by-step explanation:

gdliscjlzxChanges made to your input should not affect the solution:

 (1): "m2"   was replaced by   "m^2". 

Step by step solution :

STEP1:Trying to factor by splitting the middle term

 1.1     Factoring  m2-m-2 

The first term is,  m2  its coefficient is  1 .

The middle term is,  -m  its coefficient is  -1 .

The last term, "the constant", is  -2 

Step-1 : Multiply the coefficient of the first term by the constant   1 • -2 = -2 

Step-2 : Find two factors of  -2  whose sum equals the coefficient of the middle term, which is   -1 .

     -2   +   1   =   -1   That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -2  and  1 

                     m2 - 2m + 1m - 2

Step-4 : Add up the first 2 terms, pulling out like factors :

                    m • (m-2)

              Add up the last 2 terms, pulling out common factors :

                     1 • (m-2)

Step-5 : Add up the four terms of step 4 :

                    (m+1)  •  (m-2)

             Which is the desired factorization