Odpowiedź:
(-2b²-5ab+2a²)-(-4a²+2ab+b²)=
-2b²-5ab+2a²+4a²-2ab-b²=
6a²-3b²-7ab
Szczegółowe wyjaśnienie:
(-2b²-5ab+2a²)-(-4a²+2ab+b²)=-2b²-5ab+2a²+4a²-2ab-b²=
=2a²+4a²-2b²-b²-5ab-2ab=6a²-3b²-7ab
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Odpowiedź:
(-2b²-5ab+2a²)-(-4a²+2ab+b²)=
-2b²-5ab+2a²+4a²-2ab-b²=
6a²-3b²-7ab
Szczegółowe wyjaśnienie:
Odpowiedź:
6a²-3b²-7ab
Szczegółowe wyjaśnienie:
(-2b²-5ab+2a²)-(-4a²+2ab+b²)=-2b²-5ab+2a²+4a²-2ab-b²=
=2a²+4a²-2b²-b²-5ab-2ab=6a²-3b²-7ab