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DENIUS [597]
3 years ago
9

F(x) = x3 + 3x2 + 2x – 8, find f (-4)

Mathematics
1 answer:
forsale [732]3 years ago
6 0

Answer:

-52

Step-by-step explanation:

f(-4) = x3 + 3x2 + 2x – 8=

(-4)3+3(-4)2+2(-4)-8=

-12+-24+-8-8=

-52

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Answer:

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Step-by-step explanation:

Given data

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cross multiply

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A2= 1.78

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3 years ago
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6r+5=11r\ \ \ \ |\text{subtract 6r from both sides}\\\\5=5r\ \ \ \ |\text{divide both sides by 5}\\\\\boxed{r=1}\\-------------------------\\\dfrac{2x-4}{2}=6x+3\\\\\dfrac{2x}{2}-\dfrac{4}{2}=6x+3\\\\x-2=6x+3\ \ \ \ \ |\text{add 2 to both sides}\\\\x=6x+5\ \ \ \ |\text{subtract 6x from both sides}\\\\-5x=5\ \ \ \ \ |\text{divide both sides by -5}\\\\\boxed{x=-1}

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