B. Perform the indicated operations. Write your SOLUTION and FINAL ANSWER. 1. (5x4 – 3x2 + 4) + (6x3 – 4x2 – 7)
2. Add (2x5 - 6x3 - 12x2 - 4) and (-11x5 + 8x + 2x2 + 6)
3. (2x2y – 5xy + 3y2) – (7xy – 6y2 + 5x2y)

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.

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality