Solving Quadratics by Factorising

Question 1:

2 x2+3x+1 = 0
x =−12 or −1

Question 2:

2 x2+x−3 = 0
x =−32 or 1

Question 3:

2 x2+13x+6 = 0
x =−12 or −6

Question 4:

3 x2+14x−5 = 0
x =13 or −5

Question 5:

4 x2+4x−15 = 0
x =−52 or 32

Question 6:

9 x2−6x+1 = 0
x =13 or 13