Question

ly.
Solve by factorisation method:
(a)
8x? – 22x - 21=0​

Answer 1

Step-by-step explanation:

8xsq -22x-21=0

8xsq -28x-6x-21=0

4x(2x-7)-3(2x-7)=0

(4x-3)(2x-7)=0

4x-3=0 or 2x-7=0

4x=3 or 2x=7

x=3/4 or x=7/2

I hope it will helpa you