Simplify the expression: x2 + x(x – 5) – x + 7 a. 2x2 – 6x + 7 b. x3 –5x + 7 c. 6x2 – x + 7 d. –5x2 – x + 7

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.