Answer:
[tex]3x^{2} + 6x + 10 / x^{2} + 5x - 12[/tex]
Step-by-step explanation:
All I did is divide, to show how many time larger the first triangle is than the smaller rectangle, this results in a ratio between the two!
[tex]3x^{2} + 6x + 10 / x^{2} + 5x - 12[/tex]