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If f(x)=2x-5x^2 and g(x) =5x+2 what is f(4) ? A. -2376 B. -1584 C.-362 D.-52 E. None

If f(x)=2x-5x^2 and g(x) =5x+2 what is f(4) ? A. -2376 B. -1584 C.-362 D.-52 E. None
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If f(x)=2x-5x^2 and g(x) =5x+2 what is f(4) ?

A. -2376
B. -1584
C.-362
D.-52
E. None

asked
User Lidakis Manolis
by
8.1k points

2 Answers

7 votes

Answer:

E. None

Explanation:

f(x) = 2x - 5x²

f(4) = 2*4 - 5*4² = 8 - 80 = - 72

answered
User James Wayne
by
9.0k points
3 votes
Plug 4 into f(x). The answer is -72 so option E is the correct one.
answered
User Skofgar
by
8.8k points
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