Pls answer all questions with working...Its urgent...
Q1 Represent root 4.6 on number line
Q2 Factorise (2x-y)cube +(4z-2x)cube +(3y-4z)cube
Q3 The polynomial p(x)=2x^3+kx^2-3x+5 and q(x)=x^3-2x^2-x+k,when divided by (x-2) leave the remainders r1 and r2 respectively...Find the value of k if r1=r2.
Q4 Find the value of k for which x-1 is a factor of the polynomial x^3-kx^2-11x-6 is ?
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answer no 4
x-1=0
x=1
p(x)=x^3-kx^2-11x-6
p(1)=1*3-k1*2-11*1-6
l.h.s here we use 0
0=3-k*2-11-6
0=3-2k-17
0=-14-2k
0+14=-2k
14=-2k
14/-2=k
-7=k
x-1=0
x=1
p(x)=x^3-kx^2-11x-6
p(1)=1*3-k1*2-11*1-6
l.h.s here we use 0
0=3-k*2-11-6
0=3-2k-17
0=-14-2k
0+14=-2k
14=-2k
14/-2=k
-7=k
eashanbhatia:
U had to answer alll 4, i told
-7 is wrong... There is no such option...
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