Question

2x^2-1/2x=9 solve it using factorisation method.

Answer 1

Answer:

x=5

Step-by-step explanation:

$2 { x}^{2} - 1 \div 2x = 9 \\ 2 {x}^{2} \div 2x = 10 \\ 2x = 10 \\ x = 5$

Answer 2

Step-by-step explanation:

2x²-1/2x=9

multiply by 2

4x²-x-18=0

4x²+8x-9x-18=0

4x(x+2)-9(x+2)=0

(x+2)(4x-9)=0

x = -2 or 9/4