Factorise:(x+y)² +11 (X+y)+30

1 Ask: Which two numbers add up to 11 and multiply to 30?

5 and 6

2 Rewrite the expression using the above.

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3