Find the roots of the following
quadratic equations by He factorisation
method.
(a) 2 x² + 5/3x -2 = 0
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2x²+5/3×-2=0
MULTIPLY BY 3 ON BOTH THE SIDES
3(2x²+5/3x-2)=3×0
We get
6x²+5x-6=0
3x(2x+3)-2(2x+3)=0
(2x+3) (3x-2)=0
Therefore
2x-3=0 or 3x-2=0
x=3/2 or x=2/3
Therefore x=3/2 or x=2/3 are the roots of the quadratic equation.
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