To find the difference of the two expressions, we need to distribute the negative sign in the second expression:
(- 0.4x + 0.5x ^ 2 + 2) - (0.6 + x ^ 2 + 0.5x)
= -0.4x + 0.5x^2 + 2 - 0.6 - x^2 - 0.5x
= 0.5x^2 - x^2 - 0.4x - 0.5x + 2 - 0.6
= - 0.5x^2 - 1.9x + 1.4
Therefore, the difference of the expression is -0.5x^2 - 1.9x + 1.4. Option D: -0.5x^2 - 0.9x + 1.4 is the correct choice.
Determine the difference of the expression (- 0.4x + 0.5x ^ 2 + 2) - (0.6 + x ^ 2 + 0.5x)
- 0.5x ^ 2 - x + 1.4
- x ^ 2 - 0.5x + 1.5
- 0.5x ^ 2 - 0.9x + 1.5
- 0.5x ^ 2 - 0.9x + 1.4
1 answer