(9 + the square root of x) multiplied by (9- the square root of x)
T tbryant New member Joined Feb 6, 2006 Messages 11 Feb 17, 2006 #1 (9 + the square root of x) multiplied by (9- the square root of x)
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,583 Feb 17, 2006 #2 If they'd given you (9 + x)(9 - x), what would you have done? Do the same process with (9 + sqrt[x])(9 - sqrt[x]). Eliz.
If they'd given you (9 + x)(9 - x), what would you have done? Do the same process with (9 + sqrt[x])(9 - sqrt[x]). Eliz.