Hey there!
a(x + 1) - b(x + 1)
= a(x) + a(1) - b(x) - b(1)
= ax + 1a - bx - 1b
= ax - bx + a - b
Therefore, your answer SHOULD BE:
ax - bx + a - b
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
