Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
a) \(56^2+44^2+2.56.44=56^2+2.56.44+44^2=\left(56+44\right)^2=100^2=10000\)
b) \(36^2+64^2+72.64=36^2+2.36.64+64^2=\left(36+64\right)^2=100^2=10000\)
c) \(136^2+36^2-72.136=136^2-2.36.136+36^2=\left(136-36\right)^2=100^2=10000\)
a) $56^2+44^2+2.56.44=56^2+2.56.44+44^2=\left(56+44\right)^2=100^2=10000$562+442+2.56.44=562+2.56.44+442=(56+44)2=1002=10000
b) $36^2+64^2+72.64=36^2+2.36.64+64^2=\left(36+64\right)^2=100^2=10000$362+642+72.64=362+2.36.64+642=(36+64)2=1002=10000
c) $136^2+36^2-72.136=136^2-2.36.136+36^2=\left(136-36\right)^2=100^2=10000$
\(A=136^2-92.136+46^2=136^2-2.136.46+46^2=\left(136-46\right)^2=90^2=8100\)\(B=135^2+110.135+55^2=135^2+2.135.55+55^2=\left(135+55\right)^2=190^2=36100\)
1362 − 92.136 + 462
= 1362 − 2.46.136 + 462
=(136−46)2
=902
=8100
\(4x^2-4xy+y-25a^2+10a-136\)
\(\text{Phân tích thành nhân tử}\)
\(-\left(4xy-y-4x^2+25a^2-10a+136\right)\)
k nhé !
\(\frac{258^2-242^2}{254^2-246^2}=\frac{\left(258+242\right)\left(258-242\right)}{\left(254+246\right)\left(254-246\right)}=\frac{500.16}{500.8}=2\)
\(263^2+74.263+37^2=263^2+2.37.263+37^2=\left(263+37\right)^2=300^2=90000\)
\(136^2-92.136+46^2=136^2-46.2.136+46^2=\left(136-46\right)^2=90^2=8100\)
\(=\left(50^2-49^2\right)+\left(48^2-47^2\right)+.....+\left(2^2-1^2\right)=\left(50+49\right)\left(50-49\right)+\left(48+47\right)\left(48-47\right)+....+\left(2+1\right)\left(2-1\right)=\left(50+49+....+1\right)=\frac{51.50}{2}=51.25=1275\)
1362 + 362 -72.136
= 1362 + 362 - 2.36.136
= (136 - 36)2
= 1002 = 10000
\(136^2+36^2-72.136\)
\(=136^2+36^2-2.36.136\)
\(=\left(136-36\right)^2\)
\(=100^2=10000\)