If f(x) = 2x² + 3x - 19, find f(-4)

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Jturcotte asked Aug 10, 2023

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If f(x) = 2x² + 3x - 19, find f(-4)

Mathematics
high-school

Jturcotte asked Aug 10, 2023

by Jturcotte

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2 Answers

24 votes

Answer:

f(-4)=1

Explanation:

f(x) = 2x² + 3x - 19

f(-4)=2(-4)² + 3(-4)-19

f(-4)=2(-16)+3(-4)-19

f(-4)=-32+3(-4)-19

f(-4)=32-12-19

f(-4)=20-19

f(-4)=1

Marcello answered Aug 11, 2023

by Marcello

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20 votes

2(-4)^2+3(-4)-19
32+(-12)-19= 1

Parrish answered Aug 16, 2023

by Parrish

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