1. The error in the solution is mainly the answer of the equation.
2. The one that makes the answer wrong is the solution discarded the integer rules in terms of adding numbers with opposite signs.
-2x(x + 9) + 3(x² + 5x)
-2x² - 18x + 3x² + 15x
(-2x² + 3x²) + (-18x + 15x)
= x² - 3x
#CarryOnLearning
Copyright © 2024 EHUB.TIPS team's - All rights reserved.
Answers & Comments
Verified answer
POLYNOMIALS
1. The error in the solution is mainly the answer of the equation.
2. The one that makes the answer wrong is the solution discarded the integer rules in terms of adding numbers with opposite signs.
-2x(x + 9) + 3(x² + 5x)
-2x² - 18x + 3x² + 15x
(-2x² + 3x²) + (-18x + 15x)
= x² - 3x
#CarryOnLearning