F(x) = 3x3 - 4x2 + 5 and g(x) = x2 + 2x - 6 . what’s f(x) + g(

To find this answer, we are going to combine like terms, meaning that we are going to combine terms that have the same variables with the same exponents (for example, and equals ).

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870