Question

which of the following is not a zero of the polynomial x²-7x+6

OPTIONS
A-: 1
B-:2
C-: -2
D-: -3​

Answer 1

Answer:

taking X=1

${1}^{2} - 7 \times 1 + 6 \\ 1 - 7 + 6 \\ 7 - 7 = 0$

taking X=2

${2 }^{2} - 7 \times 2 + 6 \\ 4 - 14 + 6 \\ 10 - 14 = - 4$

takingx=-2

${ - 2}^{2} - 7 \times - 2 + 6 \\ 4 + 14 + 6 = 24$

takingx=-3

${ - 3}^{2} - 7 \times - 3 + 6 \\ 9 + 21 + 6 = 36$

Step-by-step explanation:

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