kris22elizondop9v1bb
12.02.2021 •
Mathematics
(5x + 7x²-x) + (8x² + 4x-5)
solve the problem
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Ответ:
=15x2+8x−5
Step-by-step explanation:
Do you need an explanation!!
Ответ:
Ответ:
All you have to do in this problem, is know what s is, we find this by using the equation: s+8+2s+s=84 (we use 84 because it is the perimeter of the triangle.
Perimeter= 84 inches
1st side: 19
2nd side: 19+8=27
3rd side: 2*19=38