Q8 of 64 Page 49

A trader bought 2x2 — x + 2 TV sets for Rs. 8x4 + 7x — 6. Find the price of one TV set.

Cost of 2x2 — x + 2 TV sets = Rs. 8x4 + 7x — 6


Here, dividend polynomial = p(x) = 8x4 + 7x — 6


and divisor polynomial = s(x) = 2x2 — x + 2



⇒ Cost of one TV set = 4x2 + 2x – 3.


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(1) is a zero of the linear polynomial p(x) = 5x + 7.


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(5) Any quadratic polynomial p(x) has at least one zero, x R