Question

3. If x = 2 is a root of the polynomial f (x) = 2x2 -3x +7a, find the value of a.
3
2
volueofa​

Answer 1

Answer:

since x is a root

so f(x) = 0

f (x) = 2x2 -3x +7a

0 = 4 - 3×2 +7a

0= 4-6+7a

0 = -2+7a

2= 7a

2/7 = a

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Answer 2

Answer:

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