Question

${2x}^{2} - 10x - 55 = 0$
using factorisation method​

Answer 1

Answer:

x= -5 , x= 21/2

Step-by-step explanation:

2x^2 -11x+10x-55

x(2x-11) +5(2x-11)

x+5=0, 2x-11=0

x=0-5, 2x=10+11

x=-5, 2x=21

x= -5 , x= 21/2