Question

Which expression is equivalent to

(x2 - 4x + 5)(3x – 7)
-
A 4x3 + 23x2 + 48x - 35
B 3r3 - 19x² + 48x – 35
C 3x3 + 1982 - 8x – 35
D 4x3 - 23x2 – 8x – 35

Answer 1

I get 3
`x^(3)` - 19x² + 43x – 35

This does not appear as an option. Is option B mistyped? It is the same with the exception of the 48x.

Explanation:

(x2 - 4x + 5)(3x – 7)

3x^3 - 7x^2 -12x^2 +28x +15x -35

3x^3 -19x^2 +43x -35