minta tolong caranya ya

Jawaban :
x²/x²+3x-10 + 2x/2x+10
= x²/x²+3x-10 + 2x/2(x+5)
= x²/x²+3x-10 + x/x+ 5
= x² . (x+5)+x . (x²+3x+10)/(x²+3x+10).(x+5)
= x³+5x²+x³+3x²+10x/(x²+3x+10).(x+5)
= x³+5x²+x³+3x²+10x/x³+5x²+3x²+15x+10x+50
= 2x³ + 8x²+10x / x³+8x²+25x+50