1) how much greater than m^2+3mn−n^2 is 4m^2+5mn+6n^2? 2)how much less than 3x^2−7x+9 is 2x^2+4x−8? what is the value of the result when x=2? ^=power

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Step-by-step explanation:

We have been given and

for (1) we will subtract  from  that is:

Now, simplify the like terms we get:

After simplification we get:

Hence, is the required result.

(2) Now, we need to find how much less than is

Subtract from we get:

After simplifying like terms

When x=2 the the above  expression becomes:

answer: approximately 206 bones

i hope this u out a branlist and a would be greatly appreciated :