Question

what should be the value of a if 2x²-ax+4=0 when x=1​

Answer 1

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Answer 2

Answer: 6

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x = 1

Now we can subsitute the value of x

2x² - ax + 4 = 0

2(1)² - a(1) + 4 = 0

2 - a + 4 = 0

-a + 6 = 0

-a = -6

a = 6

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