Question

Ms Peterson wrote the expression below on the chalkboard for her class. She asked the students to write an equivalent expression using no more than one set of parenthesis.

4(3x+5y+2z)+3(x-z)
Tom wrote 12x+20y+8z
Jenna wrote 5(3x+4y+z)
Chris wrote 15x+20y-5z
Which,if any, of the three students wrote an equivalent expression to Ms Peterson’s expression?

Answer 1

I think it would be either Jenna or Chris. If you HAVE to use a set of parentheses then it's Jenna but if not, I think it could be either one.

Answer 2

4(3x + 5y +2z) + 3(x - z) =
(12x + 20y + 8z) + (3x - 3z) =
(15x + 20y + 5z) = that is the answer but you can still simplify it so:
5(3x + 4y + z)
therefore the only correct person on the list is Jenna.