-3x² + 18x + 21 per x² - 8x +21 berapa kak -6 x² + 22x -20 per 9x²- 25 berapa kak Pake cara ya

→-3×^2 +18× +21 / ×^2 -8× +21
= (

→ -6×^2 +22× -20 /9×^2 - 25
= (6× +10)(×+2) / (3× +5)(3×-5)
= (2× + 2)(×+2) / 3×-5