упростить :
1. -3*а*(-5в)*(-2а)
2. 3х-(4-2х)-(8+5х)
3. -(2-3а-(7-4а))
4. 5*(2х-1)+6*(3-4х)
5. -2*(3х-2у)-3*(х+у)
1. -3*а*(-5в)*(-2а)
2. 3х-(4-2х)-(8+5х)
3. -(2-3а-(7-4а))
4. 5*(2х-1)+6*(3-4х)
5. -2*(3х-2у)-3*(х+у)
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Ответ:
1) -3a(-5b)(-2a) = 15a×(-2a) = -30a²b