Answer:5x2+12x-14
Step-by-step explanation:
(5x2+11x-9)-(2x-3x+5)
5x2+11x-9-2x+3x-5
5x2+12x-14
[tex](5x^2 + 11x - 9) - (2x - 3x + 5)=5x^2+11x-9-2x+3x-5=5x^2+12x-14[/tex]
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[tex](5x^2 + 11x - 9) - (2x^2 - 3x + 5)=5x^2+11x-9-2x^2+3x-5=3x^2+14x-14[/tex]
