Question

What is the value of polynomial 3x square+x-1 at x=-2

Answer 1

Answer:

9

Step-by-step explanation:

Given polynomial:

f(x) = 3x² + x -1

Now, for x = 2

f(2) = 3(-2)² + (-2) -1

= 3(4) -2 -1

= 12 - 2 - 1

= 9

So, f(2) = 9

∴ Answer  = 9

Hope, you got it :-))

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Answer 2

Answer:

value of the polynomial is = 9

Step-by-step explanation:

3x² + x-1 when x= -2

3(-2)² + (-2) -1

3×4 -2 -1

12 -3

= 9

hope it's clear to u