Question

find the roots of quadratic equation 9x square-3x-20 =0 by factorization method​

Answer 1

Answer:

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Step-by-step explanation:

9x^2-3x-20 = 0

or 9x^2 -15x+12x-20 = 0

or 3x (3x -5) + 4 (3x-5) =0

or (3x+4) (3x-5) =0

or x = (-4/3) or x = (5/3)