Answer:
the difference is 14
Step-by-step explanation:
subtracting 3x2 4x – 5 from 7x2 x 9 results in a polynomial
Subtract [tex]3x^2+4x-5 from 7x^2+x+9[/tex]
[tex]7x^2+x+9-(3x^2+4x-5)[/tex]
Multiply negative inside the parenthesis
[tex]7x^2+x+9-3x^2-4x+5[/tex]
[tex]4x^2-3x+14[/tex]
Now we subtract 4x^2 -3x from the result [tex]4x^2-3x+14[/tex]
[tex]4x^2-3x+14-(4x^2-3x)[/tex]
[tex]4x^2-3x+14-4x^2+3x)[/tex]
14
