Respuesta :
Answer:
-8x^2 + 6x - 14
Step-by-step explanation:
(3x^2 + 4x - 5) - (7x^2 + x + 9) = -4x^2 + 3x - 14
(-4x^2 + 3x - 14) - (4x^2 - 3x) = -8x^2 + 6x - 14
Answer:
the difference is 14
Step-by-step explanation:
Hello
I think I can help you with this
step 1
Subtracting 3x2 + 4x – 5 from 7x2 + x + 9
[tex]7x^{2} +x+9-(3x^{2} +4x-5)\\=7x^{2} +x+9-3x^{2} -4x+5\\=4x^{2} -3x+14\\[/tex]
Step2
After subtracting 4x2 – 3x from this polynomial
[tex]4x^{2} -3x+14-(4x^{2} -3x)\\4x^{2} -3x+14-4x^{2} +3x\\14[/tex]
the difference is 14
Have a fantastic day,I hope it helps