CBSE Class 10 Answered
POLYNOMIAL(PLS ANSWER FAST)
Asked by prakharsrivastava | 01 May, 2010, 08:40: AM
Expert Answer
By division theorem of Algorithm, we know that
p(x) = q(x).g(x) + r(x)
3x3+x2+2x+5 = (3x- 5).g(x) + 9x + 10
3x3+x2 - 7x - 5 = (3x-5).g(x)
So, g(x) = (3x3+x2 - 7x - 5)/ (3x - 5)
= x2 + 2x + 1
For the second question, substitute x = -1 in the polynomial P(x)=3x3-5x2-11x-3 as it is given that -1 is the zero of the polynomial. The polynomial will reduce down to a quadratic polynomial. Equate it to zero and factorise to get the remaining two zeroes.
Answered by | 03 May, 2010, 09:41: AM
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