Question

factorise
a) x2 +6x+3
x 8​

Answer 1

Answer:

Step-by-step explanation:

x  ^2+6x+8 =x^2 +4x+2x+8,        (split middle term)

=(x^2 +4x)+(2x+8),    (group pair of terms)  

=x(x+4)+2(x+4),         (factor each binomials

=(x+4)(x+2),              (factor out common factor (x+4)

Hence factors of x  ^2 +6x+8 are (x+4)(x+2)