Question

factorise of 18x+x^2+81is​

Answer 1

Answer:

(-9,-9)

Step-by-step explanation:

x^2+18x+81=0

x^2+9x+9x+81=0

x(x+9)+9(x+9)=0

(x+9)(x+9)=0

x+9=0,x+9=0

x=-9,x=-9

x=(-9,-9)