Solving Quadratics by Factorising

Question 1:

5 x2+8x+3 = 0
x =−35 or −1

Question 2:

4 x2+x−5 = 0
x =−54 or 1

Question 3:

2 x2−5x−3 = 0
x =−12 or 3

Question 4:

4 x2−3x−1 = 0
x =−14 or 1

Question 5:

6 x2+7x+2 = 0
x =−23 or −12

Question 6:

6 x2−23x+20 = 0
x =52 or 43