Question

Упростить выражение 2) 276m- (172m+14m),4)26z+(13z+5z)+z,6)42x+45+8x+45,8)204b+30b+6b+56.

Answer 1

$2)276m-(172m+14m)=276m-186=90m \\ 4)26z+(13z+5z)=26z+(18z)=26z+18z=44z \\ 6)42x=45+8x+45=50x+90=10(5x+9) \\ 8)204b+30b+6b+56=240b+56=8(30b+7)$

Answer 2

2. 276m - (172m + 14m) = 276m - 186m = 90m

3. 26z + (13z + 5z) + z = 26z + 18z = 44z

4. 42x + 45 + 8x + 45 = 50x + 90

5. 204b + 30b + 6b + 56 = 240b + 56