# squaring sums, expand the given binomial sum.

• April 9th 2010, 09:18 PM
jjjjj
squaring sums, expand the given binomial sum.
(x+6)2 ; (4x+5y)2
• April 10th 2010, 12:50 AM
red_dog
Use this $(a+b)^2=a^2+2ab+b^2$, where $a=x, \ b=6$ or $a=4x, \ b=5y$