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The expression 21x^(2) + 11x -2 equals t...

The expression `21x^(2) + 11x -2` equals to

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21x^(2) - 28x + 10=0

21x^(2) - 28x + 10=0

21x^(2) - 28x + 10=0

21x^(2) - 28x + 10=0

21x^(2) - 28x + 10=0