G Guest Guest Apr 5, 2006 #1 ok this is what i did so far 1-10r+25r^2 1+5 times r times 2 +5^2 times r = ? this is the problem 1-1or+25r^2 thank you

ok this is what i did so far 1-10r+25r^2 1+5 times r times 2 +5^2 times r = ? this is the problem 1-1or+25r^2 thank you

D Denis Senior Member Joined Feb 17, 2004 Messages 1,483 Apr 6, 2006 #3 Adalia said: ok this is what i did so far 1-10r+25r^2 1+5 times r times 2 +5^2 times r = ? Click to expand... What d'heck are you doing ? :shock: 25r^2 - 10r + 1 = (5r - 1)(5r - 1)

Adalia said: ok this is what i did so far 1-10r+25r^2 1+5 times r times 2 +5^2 times r = ? Click to expand... What d'heck are you doing ? :shock: 25r^2 - 10r + 1 = (5r - 1)(5r - 1)