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2015-07-25T15:28:36+08:00

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(a+b+c)²
=a²+b²+c²+2ab+2ac+2bc
(r-t+n)²
=r²+t²+n²-2rt+2rn-2tn
0
Ate !, tama pala hehe, ako pala yung mali.. Hehe, amhf, pwd hingi ng solution pra malaman ko kung pano mo na solve..??
yun n ung solution ung pang una .. kailangan mo nalang i-substitute ..
Ahh..!, po ate salamat po.. :)
anong ginagawa nila, (r-t+n)(r-t+n)?
Ay nag tanung lng po ko. Kung pano ..