How do you factor the expression #x^2 +7x8#?
1 Answer
May 12, 2016
Explanation:
Given
Note that the sum of the coefficients is
So
#x^2+7x8 = (x1)(x+8)#
The linear factor

Since the coefficient of
#x^2# is#1# in the product, we require a coefficient#1# for#x# . 
Since the constant term is
#8# in the product, we require a constant#+8# in the factor which will become#8# when multiplied by#1# .