mimipumkin101 mimipumkin101

26-01-2021
Mathematics

contestada

What is the sum of the polynomials
(8x^2-9y^2-4x)+ (x^2-3y^2-7x)

Options:
A: 7x^2-6y^2+3x
B: 9x^2-6y^2+3x
C: 9x^2-12y^2+3x
D: 9x^2-12y^2-11x

Respuesta :

happifeet126 happifeet126

26-01-2021

Answer:

D: 9x^2-12y^2-11x

Step-by-step explanation:

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

1. Eliminate redundant parentheses

8x^2-9y^2-4x+ x^2-3y^2-7x

2. Combine like terms

9x^2-12y^2-11x

3. Solution

9x^2-12y^2-11x

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