Question

Simplify and find the value of 4x + x + -2x2 + x - 1 when x = -1.​

Answer 1

Answer:

- 9

Step-by-step explanation:

4x + x + ( - 2x^2 ) + x - 1

(4 × -1) + ( - 1 ) + { - 2 × ( - 1 )^2} + ( - 1 ) - 1

( - 4 ) - 1 + ( - 2 × 1 ) - 1 - 1

- 4 - 1 - 2 - 1 - 1

- 5 - 2 - 2

- 5 - 4

- 9

Hope it helps!!