Draw the graph of the polynomials px) = x²-5×+6 and find the zeroes from the graph
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Refer to the attachment for details:-
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Answer:
SOLUTION
TO DETERMINE
The graph of a polynomial
\sf{}P(x) = {x}^{2} - 5x + 6P(x)=x
2
−5x+6
The zeros of the polynomial
EVALUATION
For the zero of polynomial
\sf{}P(x) = {x}^{2} - 5x + 6P(x)=x
2
−5x+6
We have
\sf{}P(x) = 0P(x)=0
\implies \sf{} {x}^{2} - 5x + 6 = 0⟹x
2
−5x+6=0
\implies \sf{} {x}^{2} - (3 + 2)x + 6 = 0⟹x
2
−(3+2)x+6=0
\implies \sf{} {x}^{2} - 3x - 2x+ 6 = 0⟹x
2
−3x−2x+6=0
\implies \sf{}x(x - 3) - 2(x - 3)= 0⟹x(x−3)−2(x−3)=0
\implies \sf{}(x - 3) (x - 2)= 0⟹(x−3)(x−2)=0
If product of two real numbers are zero then either one of them are zero
\sf{}either \: \: (x - 3) = 0 \: \: or \: \: (x - 2)= 0either(x−3)=0or(x−2)=0
\sf{}(x - 3) = 0 \: \: gives \: \: x = 3(x−3)=0givesx=3
\sf{}(x - 2) = 0 \: \: gives \: \: x = 2(x−2)=0givesx=2
Hence the zeroes of the polynomial are 2 , 3
GRAPH
For graph of the polynomial refer to the attachment
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