Question

Simplify the following expression:
3[(x^3– 7 x + 1) – (x+ 4)]

Answer 1

15 - 9

Explanation:

3[( 3x - 7x plus 1) - (x plus 4)]

3[(-4x plus 1) - x-4

3[-4x plus 1 -x-4

3[-4x-x plus 1-4]

3[fivex -3]

fifteen x - 9