A has no real solution. See the picture below for details.
Bart and David are correct.
Bart
6x(1+2/3^3)
6x * 1 = 6x
6x *2/3^3 = 4x^3
6x * 4x^3
David
x(6+4x^2)
x*6 = 6x
x*4x^2 = 4x^3
6x+4x^3
NO triangle
The longest side is longer than the sum of the other 2 sides.
Answer:
Y=15
Step-by-step explanation:
2(4)+7
8+7
15
