Symmetry Answers

Simplify 3 – b(7b + 2) + 3b – (11 – b).

What is the first step in simplifying3 – b(7b + 2) + 3b – (11 – b)?

Simplify 7x + (x – 4)(x + 5) – 5x.

Harold starts to simplify the expression below, as shown, but his work is not correct.–x(6x5)2(–2y6)(y)(–6x6)2(–2y6)(y)What should Harold have done instead?

Simplify –x(6x5)2(–2y6)(y).

A rectangular garden has length and width as given by the expressions below. Length: 4 − 7(3x + 4y) Width: 3x(−2y) Write a simplified expression for the perimeter of the rectangle. − x − y − xy

Simplify the expression. 4 − [(4b3 − 25b2 + 14b − 2) ÷ (4b − 1)] −b2 + b +

Complete the steps for simplifying the given expression.Step 1: Step 2: Step 3: Step 4: The expression simplifies to – 3x2 – 8x + 4.

Step 2:

Step 3:

Step 4: The expression simplifies to – 3x2 – 8x + 4.

Which sentence best describes Marc’s error?

Raul simplified the expression, as shown below.–[3h + 7h(2 – h)] = –[10h(2 – h)] = –[20h – h] = –19hDescribe the error(s) in Raul’s work.