Ответ:
Объяснение:
.................
(3х²+х-1)+(х²-2х) = 3х²+х-1+х²-2х = 4х²-х-1
(-4у²-6)-(5у²-2у+1)= -4у²-6-5у²+2у-1= -9у²-7+2у
(2+2х²)+(3х³+х)-(х²+х+3) = 2+2х²+3х³+х-х²-х-3= -1+3х³+х²
(х²-3)-(4х³+2х²-7)+(3х²-2х³+4х)= х²-3-4х³-2х²+7+3х²-2х³+4х= -6х³+4х+2х²+4
(4ав-5а)+(4в-2ав+4)-(3-4а)= 4ав-5а+4в-2ав+4-3+4а= -а+1+2ав+4в
Номер 7
3m-2m+5m = 6m
Номер 8
5х-3+х+6 = 6х+3
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Verified answer
Ответ:
Объяснение:
.................
Ответ:
(3х²+х-1)+(х²-2х) = 3х²+х-1+х²-2х = 4х²-х-1
(-4у²-6)-(5у²-2у+1)= -4у²-6-5у²+2у-1= -9у²-7+2у
(2+2х²)+(3х³+х)-(х²+х+3) = 2+2х²+3х³+х-х²-х-3= -1+3х³+х²
(х²-3)-(4х³+2х²-7)+(3х²-2х³+4х)= х²-3-4х³-2х²+7+3х²-2х³+4х= -6х³+4х+2х²+4
(4ав-5а)+(4в-2ав+4)-(3-4а)= 4ав-5а+4в-2ав+4-3+4а= -а+1+2ав+4в
Номер 7
3m-2m+5m = 6m
Номер 8
5х-3+х+6 = 6х+3