Ответ:
10y-9
Объяснение:
[tex](y+4)y-(3-y)^2=y*y+4*y-(3^2-2*3*y+y^2)=\\\\=y^2+4y-(9-6y+y^2)=y^2+4y-9+6y-y^2=10y-9[/tex]
[tex](y + 4)y - (3 - y) {}^{2} = y {}^{2} + 4y - (3 - y) {}^{2} = y {}^{2} + 4y - (9 - 6y + y {}^{2} ) = y {}^{2} + 4y - 9 + 6y - y {}^{2} = y {}^{2} + 10y - 9 - y {}^{2} = 10y - 9[/tex]
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Answers & Comments
Ответ:
10y-9
Объяснение:
[tex](y+4)y-(3-y)^2=y*y+4*y-(3^2-2*3*y+y^2)=\\\\=y^2+4y-(9-6y+y^2)=y^2+4y-9+6y-y^2=10y-9[/tex]
Объяснение:
[tex](y + 4)y - (3 - y) {}^{2} = y {}^{2} + 4y - (3 - y) {}^{2} = y {}^{2} + 4y - (9 - 6y + y {}^{2} ) = y {}^{2} + 4y - 9 + 6y - y {}^{2} = y {}^{2} + 10y - 9 - y {}^{2} = 10y - 9[/tex]