The sum of zeros of polynomial 7 x square - 14x + 21
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Step-by-step explanation:
The sum of zeros of polynomial 7 x square - 14x + 21
so multiply 3 in this polynomial we get
21x²-11x-2
21x²-14x+3x-2
7x(3x-2)+1(3x-2)
(7x+1)(3x-2)
so the zeroes are
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