What is the simplified form?

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =