Question

how to solve 3.b ? add maths form 4 chapt 1

Answer 1

x:x^2-4(x is related to x square minus four)
f(x)=x-2 (put this value of x in given equation at place of x)
Then
x:(x-2)^2-4 (solve it u will get the value of x)
(x^2-4x) ( x square minus four x) ans.