Question

Question 5
Factorise the following polynomials
(a) xy(z² + 1) + z(x² + y²)​

Answer 1

Answer:

Both 2y and 6 have a common factor of 2:

2y is 2 × y

6 is 2 × 3

So we can factor the whole expression into:

2y+6 = 2(y+3)

So 2y+6 has been "factored into" 2 and y+3