Question

find the value of the polynomial 3x²+4x+5 at x=-1​

Answer 1

Answer:

3x^2+4x+5

3(-1)^2+4(-1)+5

3-4+5

-1+5

4

Answer 2

Step-by-step explanation:

$3x {}^{2} + 4x + 5 \\ putting \: the \: value \: of \: x \\ 3 \times ( - 1) {}^{2} + 4 \times ( - 1) + 5 \\ 3 - 4 + 5 \\ 4$