Question

if the value of polynomial x²-ax+7 for x = -1 is 10 then find the value of a
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Answer 1

Answer:

a = 2

Step-by-step explanation:

x = -1

(-1)^2 + a + 7 = 10

8 + a = 10

a = 10-8=2

Answer 2

Answer:

a = 2

Step-by-step explanation:

For step by step explanation, check the below-attached image.

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