Question

Разложить на множетели
1.x²-14x+45
2.3y²+7y-6

Answer 1

$1)x {}^{2} - 14x + 45 \\ x {}^{2} - 5x - 9x + 45 \\ x \times (x - 5) - 9(x - 5) \\ (x - 5) \times (x - 9) \\ \\ 2)3y {}^{2} + 7y - 6 \\ 3y {}^{2} + 9y - 2y - 6 \\ 3y \times (y + 3) - 2(y + 3) \\ (y + 3) \times (3y - 2)$