tolong dibantu pakai cara ya :) thx

(6x² -19x + 15)/(4x² - 9)
= ( 6x² - 10x) - (9x - 15 )/(2²x² - 3²)
= 2x(3x - 5) - 3(3x - 5)/((2x)² - 3²)
= (2x - 3)(3x-5)/(2x-3)(2x+3)
= (3x - 5)/(2x+3)