Solving Quadratics by Factorising

Question 1:

x2+3x+2 = 0
x = -1 or x = -2

Question 2:

x212x+35 = 0
x = 7 or x = 5

Question 3:

x2+7x+12 = 0
x = -3 or x = -4

Question 4:

x27x18 = 0
x = -2 or x = 9

Question 5:

x2+2x24 = 0
x = 4 or x = -6

Question 6:

x236 = 0
x = 6 or x = -6