Question

Please I need help I totally forgot how to do it

Answer 1

 5n2+10n+20 Final result : 5 • (n2 + 2n + 4)

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "n2"   was replaced by   "n^2". 

Step by step solution :Skip Ad
Step  1  :Equation at the end of step  1  : (5n2 + 10n) + 20 Step  2  :Step  3  :Pulling out like terms :

 3.1     Pull out like factors :

   5n2 + 10n + 20  =   5 • (n2 + 2n + 4) 

Trying to factor by splitting the middle term

 3.2     Factoring  n2 + 2n + 4 

The first term is,  n2  its coefficient is  1 .
The middle term is,  +2n  its coefficient is  2 .
The last term, "the constant", is  +4 

Step-1 : Multiply the coefficient of the first term by the constant   1 • 4 = 4 

Step-2 : Find two factors of  4  whose sum equals the coefficient of the middle term, which is   2 .

     -4   +   -1   =   -5     -2   +   -2   =   -4     -1   +   -4   =   -5     1   +   4   =   5     2   +   2   =   4     4   +   1   =   5