Объяснение:
ответ на рисунке не забудьте оценить
1.
1) m³+27n³ = (m+3n)(m²-3mn+9n²)
2) x³-64xy² = x(x²-64y²) = x(x-8y)(x+8y)
3) -3a²+18a-27 = -3(a²-6a+9) = -3(a-3)²
4) 2ab+10b-2a-10 = 2(a+5)(b-1)
5) a^4-16 = (a²-4)(a²+4) = (a-2)(a+2)(a²+4)
2.
(2a-1)(4a²+2a+1) = (2a)³-1³ = 8a³ - 1
8a³ - 1 = 8 ×()³-1 = 8×(-)-1 = -1-1 = -2
3.
1) x²-y²+x-y = (x-y)(x+y+1)
2) 4x²-4xy+y²-9 = (2x-y)²-9 = (2x-y-3)(2x-y+3)
3)
4) 4-m²+2mn-n² = 4-(m-n)² = (2-m+n)(2+m-n)
Объяснение:
ответ на рисунке не забудьте оценить
1.
1) m³+27n³ = (m+3n)(m²-3mn+9n²)
2) x³-64xy² = x(x²-64y²) = x(x-8y)(x+8y)
3) -3a²+18a-27 = -3(a²-6a+9) = -3(a-3)²
4) 2ab+10b-2a-10 = 2(a+5)(b-1)
5) a^4-16 = (a²-4)(a²+4) = (a-2)(a+2)(a²+4)
2.
(2a-1)(4a²+2a+1) = (2a)³-1³ = 8a³ - 1
8a³ - 1 = 8 ×(
)³-1 = 8×(-
)-1 = -1-1 = -2
3.
1) x²-y²+x-y = (x-y)(x+y+1)
2) 4x²-4xy+y²-9 = (2x-y)²-9 = (2x-y-3)(2x-y+3)
3)
4) 4-m²+2mn-n² = 4-(m-n)² = (2-m+n)(2+m-n)