13.4^2-2x13.4+3.4^2
简便运算
参考答案:解:13.4^2-2x13.4+3.4^2
=13.4^2-2x13.4+3.4^2
=13.4x(13.4-2)+3.4^2
=13.4x11.4+3.4^2
=(10+3.4)x11.4+3.4^2
=114+3.4x11.4+3.4^2
=114+3.4x(11.4+3.4)
=114+3.4x14.8
=114+50.32
=164.32
简便运算
参考答案:解:13.4^2-2x13.4+3.4^2
=13.4^2-2x13.4+3.4^2
=13.4x(13.4-2)+3.4^2
=13.4x11.4+3.4^2
=(10+3.4)x11.4+3.4^2
=114+3.4x11.4+3.4^2
=114+3.4x(11.4+3.4)
=114+3.4x14.8
=114+50.32
=164.32