(7x2 - 5x + 6) + (-3x2 + 5x - 14) adding polynomials

4x² - 8

General Formulas and Concepts:

Algebra I

Step-by-step explanation:

Step 1: Define Expression

(7x² - 5x + 6) + (-3x² + 5x - 14)

Step 2: Simplify

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

3030 ur welcome

step-by-step explanation: