June 2022 1 12 Report
Упростите выражение:
1) 7х ( х - 4 ) - х ( 6 - х );
2) 5аb ( 4а + 3b ) - 10а ^2 ( 2b - 4 );
3) ху ( 2х - 11у ) - х ( ху + 14у^2 );
4) 5с^3 ( 4с - 3 ) - 2с^2 ( 8с^2 - 12 ).
Помогите пожалуйста!
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