Ms. Reginald gave the class the following expression to simplify 8 – 2(5x – 3). Who is correct and what were the mistakes the other students made? Jamie showed the following work and answer
8-2(5x-3)
(8-2)5x-3
6(5x)-3
30x-3
Right/Wrong and Why?

Taylor showed the following work and answer
8-2(5x-3)
6-3-5x
3-5x
Right/Wrong and Why?

Sam showed the following work and answer
8+ (-2)(5x+(-3)
8+(-2)(5x)+(-2)(-3)
8+(-10x)+6
8+6+(-10x)
14+(-10x)
14-10x
Right/Wrong and Why?

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

Find the solutions for a triangle with a =16, c =12, and b = 63º

Given abcd ac=38 and ae=3x+4 find the value of x