A = 2016 x 2016
B = 2018 x 2014
A = 2016 x ( 2014 + 2 )
A = 2016 x 2014 + 2016 x 2
B = 2018 x 2014
B = ( 2016 + 2 ) x 2014
B = 2016 x 2014 + 2 x 2014
Vì 2016 x 2014 = 2016 x 2014, mà 2016 x 2 > 2 x 2014
=> A > B
A = 2016 x 2016
A = (2018 - 2) x (2014 + 2)
A = 2018 x (2014 + 2 ) - 2 x (2014 + 2)
A = 2018 x 2014 + 4036 - 4028 + 4
A = 2018 x 2014 + 12
Mà B = 2018 x 2014
=> A > B
Ta có:
* \(A=2016.2016=2016^2\) (1)
* \(B=2018.2014=\left(2016+2\right).\left(2016-2\right)=2016^2-4\) (2)
Từ (1) và (2), ta suy ra:
\(2016^2>2016\Rightarrow2016.2016>2018.2014\)
(Chúc bạn học giỏi và tíck cho mìk vs nha!)
A = 2016 x 2016
A = (2018 - 2) x (2014 + 2)
A = 2018 x (2014 + 2 ) - 2 x (2014 + 2)
A = 2018 x 2014 + 4036 - 4028 + 4
A = 2018 x 2014 + 12
Mà B = 2018 x 2014
=> A > B
A = 2016 x 2016
A = (2018 - 2) x (2014 + 2)
A = 2018 x (2014 + 2 ) - 2 x (2014 + 2)
A = 2018 x 2014 + 4036 - 4028 + 4
A = 2018 x 2014 + 12
Mà B = 2018 x 2014
=> A > B
A = 2016 x 2016
A = (2018 - 2) x (2014 + 2)
A = 2018 x (2014 + 2 ) - 2 x (2014 + 2)
A = 2018 x 2014 + 4036 - 4028 + 4
A = 2018 x 2014 + 12
Mà B = 2018 x 2014
=> A > B
