#1
1) (x+1)(x-x+1)
2) (a-2)(a2+2a+4)
#2
1) (x+2)2
2) (3x-y)2
P.S Помогите решить
1) (x+1)(x-x+1)
2) (a-2)(a2+2a+4)
#2
1) (x+2)2
2) (3x-y)2
P.S Помогите решить
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Answers & Comments
2) ( a - 2)(a² + 2a + 4) = a³ - 2³ = a³- 8
1) (x + 2)² = x² + 4x + 4
2) ( 3x - y)² = 9x² - 6xy + y²