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" 30."2x^(2)-x-21...

" 30."2x^(2)-x-21

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(x^2-4x-21)=?

Find the roots of the following quadratic equations by the factorisation method. 21x^(2)-2x+1/21=0

Find the roots of the following quadratic equations by the factorisation method. 21x^(2)-2x+1/21=0

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Find the GCD of 6x^(3) -30x^(2) + 60 x-48 and 3x^(3)-12x^(2) + 21x-18 .

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Find the roots of the following quadratic equations by the factorization method: 21 x^(2) -2x+(1)/(21)=0

2,1 and -1 all are zeroes of x^(2)-x-2 .