Hwee's answer to help's Secondary 4 A Maths Singapore question.
i cant understand ur handwriting
But do you get the idea of how to solve it?
no
where did -6 come from
Can understand how to get a?
i know how to do part i but not part ii
You want to get 1/x^4, so your term needs to have 1/x^6 to multiply with the x^2 term on the right to get 1/x^4
You can telegram me @Jadegray, I show you again