Question

4. Determine the type of graph for the polynomials -x2 + x + 2 and 2x2
-3x+5​

Answer 1

Given p(x)=x³-2x²-5x+6

p(3)=27-18-15+6=0

p(-2)=-8-8+10+6=0

p(1)=1-2-5+6=0

Hence the given numbers are the zeroes of the given cubic polynomial.

Let the coefficients be q,r,s,t and roots a,b,c

Relation between roots

sum of the roots=a+b+c=-r/q=-(-2/1)=2=3+(-2)+1

product of the roots=abc=-t/q=-6=3×-2×1

sum of the products of pair of roots=ab+bc+ca=s/q=-5=3(-2)+(-2)1+1(3)

Answer 2

Answer:

intersecting

Step-by-step explanation:

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