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Question

The zeroes of the polynomial p(x) = 2x2 + 5x − 3 are
(a) 12, 3
(b) 12, -3
(c) -12, 3
(d) 1, -12

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Solution

(b) 12, -3

The zeroes of the polynomial p(x) is given by p(x) = 0.
We have:
2x2+5x-3=02x2+6x-x-3=02xx+3-1x+3=0x+32x-1=0x=-3 or x=12
Hence, 12 and -3 are the zeroes of the given polynomial.

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