Question

Verify that the numbers given alongside the cubic polynomials below are their zeroes: Also verify the relationship between the zeroes and the coefficients in each case: (ii) x2 – 3x2 + 3x - 1;(1, 1, 1)​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

p(x)=2x3+x2−5x+2          .... (1)

Zeroes for this polynomial are 21,1,−2

Substitute the x=21 in equation (1)

p(21)=2(21)3+(21)2−5(21)+2

=41+41+25+2

=0

Substitute the x=1 in equation (1)

p(1)=2×13+12−5×1+2

=2+1−5+2=0

Substitute the x=−2 in equation (1)

p(−2)=2(−2)3+(−2)2−5(−2)+2

=−16+4+10+2=0

Step-by-step explanation:

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