problems: Simple polynomial factoring 2
a) 4b + 12ab =
b) 25y + 15xy + 10y² =
c) 56x² + 63x + 70 =
answers: Simple polynomial factoring 2
a) 4b + 12ab =
4 * b + 3 * 4 * a * b =
4b * (1 + 3a)
b) 25y + 15xy + 10y² =
5 * 5 * y + 3 * 5 * x * y + 2 * 5 * y * y =
5y * (5 + 3x + 2y)
c) 56x² + 63x + 70 =
7 * 8 * x * x + 7 * 9 * x + 7 * 10 =
7 * (8x² + 9x + 10)