a: \(=25\left(32+4\cdot92\right)=25\cdot400=10000\)
b: \(=200\cdot100=20000\)
Nèk:
a, 25 x 32 + 4 x 92 x 25 b, 24 x ( 123 + 87 ) + ( 87 + 123 ) x 76
= 25 x 32 + 368 x 25 = 24 x 210 + 210 x 76
= 25 x ( 32 + 368 ) = 210 x ( 24 + 76 )
= 25 x 400 = 210 x 100
= 10000 = 21000
#tick_em_vs_a!
a=
a: =25(32+4⋅92)=25⋅400=10000=25(32+4⋅92)=25⋅400=10000
b: =200⋅100=20000
