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Carl is deriving the quadratic equation by completing the square. His work at one of the steps is shown. x + b/na = + or – b^2-4ac. Carl is
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Carl is deriving the quadratic equation by completing the square. His work at one of the steps is shown. x + b/na = + or – b^2-4ac. Carl is not sure what the value of n is. What value should he use to continue deriving the quadratic equation correctly? A. 1 B. 2 C. 3 D. 4
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Mathematics
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2021-08-02T20:59:36+00:00
2021-08-02T20:59:36+00:00 1 Answers
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Answer:
the correct option is B. 2
Step-by-step explanation:
As given,
x +
= ± √b²-4ac
⇒x = –
± √b²-4ac
As e know that the quadratic formula is
x =
So , by comparing with the formula
we get
n = 2
So, the correct option is B. 2