3 years ago

F(x)= 2x^2 + 5x - 17, find f(-1).

Mathematics

2 answers:

Alenkinab [10]3 years ago

7 0

Answer:

-20

Step-by-step explanation:

f(x)= 2x^2 + 5x - 17,

f(-1)

Let x = -1

f(-1)= 2 *(-1)^2 + 5(-1) - 17

= 2 *1 -5 -17

= 2 -22

= -20

Shtirlitz [24]3 years ago

6 0

Answer:

-20

Step-by-step explanation:

f(x)= 2x² + 5x - 17

Put x as -1.

f(-1)= 2(-1)² + 5(-1) - 17

Solve for the powers.

f(-1)= 2(1) + 5(-1) - 17

Multiply the terms.

f(-1)= 2 + -5 - 17

Add or subtract the terms.

f(-1)= -20

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