Question

let * be a binary operation on N given by a*b = LCM(a,b) .
For every a,b belongs to N​

Answer 1

Step-by-step explanation:

(x+3)2

=(x+3)(x+3)

=(x)(x)+(x)(3)+(3)(x)+(3)(3)

=x2+3x+3x+9

=x2+6x+9