12 + 2(x + 6) - 8 = 26
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The area of a triangle could be determined using the following formula
plug in the numbers
a = 126
The area of the triangle is 126 square meters
plug in the numbers
a = 126
The area of the triangle is 126 square meters
For this case we have the following arithmetic sequence:
To write in function form, we apply distributive property to the terms within parentheses:
Different signs are subtracted and the major sign is placed.
We simplify:
Answer:
Option C