Toán Lớp 8: 2018^2-4036.2017+2017^2+2019=?
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Toán Lớp 8: 2018^2-4036.2017+2017^2+2019=?
Comments ( 2 )
= 2018^2 – 2\times2018\times2017 + 2017^2 + 2019
= (2018 – 2017)^2 + 2019
= 1^2 + 2019
= 1 + 2019
= 2020