Subtract

(3x^4+7x^3-9) - (5x^2-8x+4) =

3x^4 + 7x^3 - 5x^2 + 8x - 13

Step-by-step explanation:

(3x^4 + 7x^3 - 9) - (5x^2 - 8x + 4) =

The negative sign to the left of the second set of parentheses changes every sign inside the parentheses.

The first set of parentheses is unnecessary, so we just drop it.

= 3x^4 + 7x^3 - 9 - 5x^2 + 8x - 4

Now we combine like terms.

= 3x^4 + 7x^3 - 5x^2 + 8x - 13

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.

600,000,000,000, or 6e14

step-by-step explanation: