Ответ:
1. -[tex]2a^{2}[/tex]
2. [tex]-2x^{2} +17x+9[/tex]
Объяснение:
1. [tex]-a(3a-a) = -a*2a = -2a^{2}[/tex]
2. [tex]6x*3-x-2x*x+9 = 18x-x-2x^{2} +9 = 17x-2x^{2} +9 = -2x^{2} +17x+9[/tex]
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Answers & Comments
Ответ:
1. -[tex]2a^{2}[/tex]
2. [tex]-2x^{2} +17x+9[/tex]
Объяснение:
1. [tex]-a(3a-a) = -a*2a = -2a^{2}[/tex]
2. [tex]6x*3-x-2x*x+9 = 18x-x-2x^{2} +9 = 17x-2x^{2} +9 = -2x^{2} +17x+9[/tex]