Explain a question

First i distributed the number outside the brackets to the numbers on the inside.

So it became 15- 20 -24=18x   The I collected like terms and that gave the answer 33x-44.

What unit is it from?

It’s from the polynomials unit.

Was the unit difficult for you?

Personally I didn’t find the unit difficult. There were some things I did’t get at first but after a bit I understood it all and found it easy.

How could you improve your grade in semester 2?

Study and practice more before tests. Even though I already do that I could do it more and maybe that’ll  bring up my mark a bit.