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Andrej [43]
2 years ago
7

F(x) = -4x + 15 g(x) = 7x^3 Find (f-g)(2)

Mathematics
2 answers:
Inga [223]2 years ago
8 0
F / g)(x) = f(x) / g(x)

= (-9x - 1) / (7x2 - 9x + 8)


Now evaluate the expression when x=2.
djyliett [7]2 years ago
4 0

(f-g)(2)=f(2)-g(2)

Therefore, find f(2) and g(2) first before subtracting.

f(x)=-4x+15

Therefore,

f(2)=-4(2)+15\\f(2)=-8+15\\f(2)=7

Then find g(2)

g(x)=7x^3\\g(2)=7(2)^3\\g(2)=7(8)\\g(2)=56

Then put f(2) to subtract g(2)

f(2)-g(2)=7-56\\f(2)-g(2)=-49

Therefore, the answer is (f-g)(2) = -49.

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