M matteric92 New member Joined Sep 1, 2006 Messages 2 Sep 1, 2006 #1 I'm having problems solving this one. Can you help me? 2x^2 - (4 - x^2) = 6x - 4 Matt

stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 15,943 Sep 1, 2006 #2 If it helps, put the understood "1" in front of the parentheses: . . . . .2x<sup>2</sup> - 1(4 - x<sup>2</sup>) = 6x - 4 Take the -1 through the parentheses, and simplify the left-hand side. Then move the two terms on the right over to the left. Simplify. Then solve the quadratic by whatever method you prefer. Eliz.

If it helps, put the understood "1" in front of the parentheses: . . . . .2x<sup>2</sup> - 1(4 - x<sup>2</sup>) = 6x - 4 Take the -1 through the parentheses, and simplify the left-hand side. Then move the two terms on the right over to the left. Simplify. Then solve the quadratic by whatever method you prefer. Eliz.