Step-by-step explanation:Step 1: Factor the denominator if possibleI factor mo po Yung quadratic Yung X²-9x-20Step2:Polynomial Division5x3+7x2−4x+12____________x²-9x-20FIRST TERM(5x3+7x2−4x+12)−(5x3−45x2−100x)=0x3+(7x2+45x2)+(−4x+100x)+12=52x2+96x+12SECOND TERMI divide mo Yung 52x²by x²so bale magiging ganito siya 52x²_____ =52x²then subtract52x2+96x+12)−(52x2−468x−1040)=0x2+(96x+468x)+(12+1040)=564x+1052After nyan eto na 564x+10525x+52+ ___________ (x-10)(x+1)YUNG FINAL ANSWER NANJAN SA PAPEL