If f(x) = 5x2 - 3x , what is f(-3)

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Tomasz Gutkowski asked Feb 25, 2022

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24 votes

If f(x) = 5x2 - 3x , what is f(-3)

Mathematics
high-school

Tomasz Gutkowski asked Feb 25, 2022

by Tomasz Gutkowski

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16 votes

Answer: = -21

Explanation:

$5\left(-3\right)\left(2\right)-3\left(-3\right)$

$=-30-3\left(-3\right)$

$=-30-\left(-9\right)$

=-21

Arvik answered Feb 27, 2022

by Arvik

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18 votes

If the x between 5 and 2 is a letter then the answer is -21
If it’s a multiplication sign then it’s 19

Gareth Stockwell answered Mar 3, 2022

by Gareth Stockwell

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