Solving Quadratics by Factorising

Question 1:

5 x2−24x−5 = 0
x =−15 or 5

Question 2:

5 x2+24x−5 = 0
x =15 or −5

Question 3:

3 x2+10x−8 = 0
x =23 or −4

Question 4:

5 x2−22x−15 = 0
x =−35 or 5

Question 5:

9 x2−9x−4 = 0
x =43 or −13

Question 6:

6 x2+11x+4 = 0
x =−12 or −43