Respuesta :

mariahmendez
The answer to this is 8x²-8x-13
3x²+5x²+5x-8+5x²-13x-5
8x²-8x-5-8
8x²-8x-13

I hope this helps!!!!!!!!!
3x^2+5x-8
5x^2+13x-5=
8x^2-7x-13
basically you're just adding like terms and to put it the way youre writing it it is 8x2-7x-13

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