Question

The value of the polynomial 5x – 4x2

+ 3, when x = –1 is

(A) – 6 (B) 6 (C) 2 (D) –2​

Answer 1

Answer:

$given \: 5x - 4 {x}^{2} + 3 \\ \\ and \: x = - 1 \\ \\ substituiting \: the \: value \: of \:x \\ \\ we \: get \\ \\ = 5( - 1) - 4( { - 1)}^{2} + 3 \\ \\ = - 5 - 4(1) + 3 \\ \\ = - 5 - 4 + 3 \\ \\ = - 9 + 3 \\ \\ = - 6$

➡ option A = - 6

# keep smiling ☺

Answer 2

Answer:

option A is correct answer

no explanation hope you get it