Question 303540
20r^2+100rg+125g^2

5(4r^2+20rg+25g^2)

5{4r^2+10rg+10rg=25g^2}

5{2r(2r+5g)+5g(2r+5g)}

5{2r+5g)^2

yOU SHOULD HAVE SEPARATED THE COMMON CO-EFFICIENTS

ANANTH