Question

a) What should be the value of a if the value of 2x2 - x + a equals to 7, when x = 1

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Answer 1

Answer:

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Answer 2

Answer:

$2x {}^{2} - x + a = 7$

$2(1) {}^{2} - 1 + a = 7$

$2 - 1 + a = 7$

$a = 7 - 1$

$a = 6$

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