Question

x=2 is a zeros of the polynomial x2-kx+6 find the value of k

Answer 1

substituting value of x=2in polynomial x2-kx+6.
=2×2-k×2+6=0.
=4-2k+6=0.
=-2k=-10.
=k=5

Answer 2

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$question \: -$

☞x=2 is a zeros of the polynomial x²-kx+6 find the value of k?

Answer —

$→ {x}^{2} - kx + 6 = 0$

$→( {2})^{2} - k(2) + 6 = 0$

$→4 - 2k + 6 = 0$

$→ - 2k \: + 10 \: = 0$

$→ - 2k \: = \: - 10$

$→k \: = \frac{ - 10}{ - 2}$

$→k \: = 5$

hope it is helpful for you ✅✔☑

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