Question

200а-150а+12а= ?якщо а=279

Answer 1

200а-150а+12а    якщо а=279

200а-150а+12а=a*(200-150+12)=a*62=62a.

a=279 => 62*279=17298.

Answer 2

***

$a = 279$

$200a-150a+12a =50a+12a=62a$

$62a = 62 ^.279=17298$

или

$200a - 150a +12 a = (200^.279)-(150^.279)+(12^.279) = 55800 - 41850 +3348 = 17298$