Which function has exactly one real solution? A. f(x) = -4x2 + 9x B. f(x) = 2x2 + 4x – 5 C. f(x) = 6x2 + 11 D. f(x) = -3x2 + 30x

asked Jul 6, 2022 10.0k views

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Which function has exactly one real solution? A. f(x) = -4x2 + 9x B. f(x) = 2x2 + 4x – 5 C. f(x) = 6x2 + 11 D. f(x) = -3x2 + 30x – 75

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Answer:

${ \tt{f(x) = - 4 {x}^(2) + 9x }}$

Explanation:

${ \tt{f(x) = x( - 4x + 9)}}$

Perry Horwich answered Jul 12, 2022

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