Question

разложите на множители
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Answer 1

1) 2ax³ - 16ay³ = 2a(x³ - 8y³) = 2a[x³ - (2y)³] = 2a(x - 2y)(x² + 2xy + y²)

2) y² - 10y + 25 - 3xy + 15x = (y² - 10y + 25) - (3xy - 15x) =(y - 5)² - 3x(y - 5) =

= (y - 5)(y - 5 - 3x)

3) x² + 2xy + y² + 2x + 2y = (x² + 2xy + y²) + (2x + 2y) = (x + y)² + 2(x + y) =

= (x + y)(x + y + 2)