Solving Quadratics by Factorising

Question 1:

x27x = 0
x = 0 or x = 7

Question 2:

x2 9 = 0
x = 3 or x = -3

Question 3:

4 x2 196 = 0
x = 7 or x = -7

Question 4:

x24x5 = 0
x = 5 or x = -1

Question 5:

x216x =60
x = 6 or x = 10

Question 6:

3 x2x2 = 0
x =23 or 1