find the roots of the quadratic equation X square - 9 X + 20 is equal to zero by factorization
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Answered by
6
By sllitting the midle term....
x^2 - 9x + 20
= x^2 - 5x - 4x +20
= x(x - 5) - 4(x - 5)
= (x - 4) (x - 5)
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