Question

2 + 18 + 17 factorise

Answer 1

Step-by-step explanation:

2(9+17)

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Answer 2

Answer:

 Factoring  x2-18x+17  

The first term is,  x2  its coefficient is  1 .

The middle term is,  -18x  its coefficient is  -18 .

The last term, "the constant", is  +17  

Step-1 : Multiply the coefficient of the first term by the constant   1 • 17 = 17  

Step-2 : Find two factors of  17  whose sum equals the coefficient of the middle term, which is   -18 .

     -17    +    -1    =    -18    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -17  and  -1  

                    x2 - 17x - 1x - 17

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

                   x • (x-17)

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

                    1 • (x-17)

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

                   (x-1)  •  (x-17)

            Which is the desired factorization

Step-by-step explanation: