How do I simplify this expression? -(4xy-10) +2 (3xy + 5)
H htiaf687 New member Joined Sep 20, 2006 Messages 5 Sep 26, 2006 #1 How do I simplify this expression? -(4xy-10) +2 (3xy + 5)
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,582 Sep 26, 2006 #2 A good first step would be to multiply the "-1" through the first parentheses, and the "+2" through the second parentheses. Then combine "like" terms. . . . . .-(4xy - 10) + 2(3xy + 5) . . . . .-1(4xy - 10) + 2(3xy + 5) . . . . .-1(4xy) - 1(-10) + 2(3xy) + 2(+5) How much further have you gotten? Where are you stuck? Please be specific. Thank you. Eliz.
A good first step would be to multiply the "-1" through the first parentheses, and the "+2" through the second parentheses. Then combine "like" terms. . . . . .-(4xy - 10) + 2(3xy + 5) . . . . .-1(4xy - 10) + 2(3xy + 5) . . . . .-1(4xy) - 1(-10) + 2(3xy) + 2(+5) How much further have you gotten? Where are you stuck? Please be specific. Thank you. Eliz.
H htiaf687 New member Joined Sep 20, 2006 Messages 5 Sep 26, 2006 #3 Thank you very much! I think what I did wrong was add the -1