Question

Simplify the following attached expressions.

Answer 1

1.

Answer 2

2.

Answer 3

3.

Answer 4

1. \[(x-3)\div(x+4)\]
Do you want me to take you thru the solution?

Answer 5

Well, can you solve the equations then show me how to do them?

Answer 6

For problem 1 firstly you separately factorise the numerator and the denominator. Do you know how to do this?

Answer 7

Kinda yeah. But can you solve 2 & 3?

Answer 8

The answer to 2 is 10a/7. Please can you stay with me on problem 1.

Answer 9

Yeah. I'll stay with you. But can you solve 3 & then we can see how you did it?

Answer 10

The answer to 3 is:\[4\div(x+y)\]

Answer 11

That's what I got(:

Answer 12

Good. What did you get for 1 and 2?

Answer 13

The numerator of problem 1 factorises as follows:
\[x ^{2}-7x+12=(x-4)(x-3)\]
Can you factorise the denominator?