Question

Pls respond .............

Answer 1

D. 10x^2+4x+3

Explanation:

You get this by adding all the terms!

Answer 2

Answer: D. 10x^2 + 4x + 3

To find the combined area, add both of the areas together.

A = (3x^2 - x + 7) + (7x^2 + 5x - 4) (Remove the parentheses)

A = 3x^2 - x + 7 + 7x^2 + 5x - 4 (Combine the like terms)

A = 10x^2 + 4x + 3

∴ the combined area of Tiffany's fence and lawn is 10x^2 + 4x + 3.