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Marinap041744
@Marinap041744
July 2022
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ПОМОГИТЕ пожалуйста 4 примера.
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Banabanana
Verified answer
(5а+3)+(-2а²+а+7) = 5а+3-2а²+а+7 = -2а²+6а+10
(х+6у)+(3-6у) = х+6у+3-6у = х+3
х²-3ху+у²-(х²-у²) = х²-3ху+у²-х²+у² =2у²-3ху
(a-b+c)+(a-c)-(a-b-c) = a-b+c+a-c-a+b+c = a+с
(7х²-5х+3)-(7х²-5) = 7х²-5х+3-7х²+5 = -5х+8
1 votes
Thanks 1
Marinap041744
СПАСИБО)))
Banabanana
пожалуйста)
sedinalana
1
5a+3-2a²+a+7=-2a²+6a+10
3
x+6y+3-6y=x+3
4
x²-3xy+y²-x²+y²=-3xy+2y²
5
a-b+c+a-c-a+b+c=a+c
6
7x²-5x+3-7x²+5=-5x+8
0 votes
Thanks 0
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Answers & Comments
Verified answer
(5а+3)+(-2а²+а+7) = 5а+3-2а²+а+7 = -2а²+6а+10(х+6у)+(3-6у) = х+6у+3-6у = х+3
х²-3ху+у²-(х²-у²) = х²-3ху+у²-х²+у² =2у²-3ху
(a-b+c)+(a-c)-(a-b-c) = a-b+c+a-c-a+b+c = a+с
(7х²-5х+3)-(7х²-5) = 7х²-5х+3-7х²+5 = -5х+8
5a+3-2a²+a+7=-2a²+6a+10
3
x+6y+3-6y=x+3
4
x²-3xy+y²-x²+y²=-3xy+2y²
5
a-b+c+a-c-a+b+c=a+c
6
7x²-5x+3-7x²+5=-5x+8