MathematicsExpert-Verified Answer
Select the correct answer. Which expression is equivalent to the given expression? −2x^2+8x−9+4x+7x^2+2
Options
- AA. 5x^2+12x−7
- BB. −5x^2+4x+11
- CC. −9x^2−12x+11
- DD. −9x^2+4x−7
Answer
The expression −2x^2+8x−9+4x+7x^2+2 simplifies to 5x^2+12x−7 by combining like terms. Look for this simplified expression in the answer choices. This equivalent expression clearly represents the original one after simplification.