\(38^2+76\cdot12+12^2\)
\(=38^2+2\cdot38\cdot12+12^2\)
\(=\left(38+12\right)^2\)
\(=50^2\)
\(=2500\)
=1444+76x12+144
=1444+912+144
=2356+144
=2500
như này đúng ko
382 + 76 . 12 + 122
= 382 + 2 . 38 . 12 + 122
= ( 38 + 122 )
= 2500
\(38^2+76.12+12^2\)
=\(38^2+2.38.12+12^2\)
=\(\left(38+12\right)^2\)
=\(50^2\)
=\(2500\)