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If f(x) = -7x4 - 4x3 - 8x2 + 12 ; find f(-3)

If f(x) = -7x4 - 4x3 - 8x2 + 12 ; find f(-3)
asked 109k views
5 votes
If f(x) = -7x4 - 4x3 - 8x2 + 12 ; find f(-3)

asked
User Parshuram Kalvikatte
by
7.9k points

2 Answers

3 votes

Answer:

−519

Explanation:

Use the given functions to set up and simplify f(−3).

answered
User Danh DC
by
7.7k points
4 votes

Explanation:

f(x)=7x⁴-4x³-8x²+12

now keep (-3 )in place of x

f(3)=7(-3)⁴-4(-3)³-8(-3)²+12

f(3)=7(81)-4(-27)-8(9)+12

f(3)=567+108−72+12

f(3)=619

answered
User Raydot
by
8.3k points
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