290
hopefully i could help ;)
Its
C. Draw a line connecting the the intersection of the arcs below and above the segment.
<span>In a triangle the sum of two sides is always greater than the third side.
5.6-4.0 < x < 5.6+4.0
1.6 < x < 9.6 </span>← answer
Hai !
6x+7+x^2+2x^2-3
6x+7+x^2+2x^2+-3
combine like terms
6x+7+x^2+2x^2+-3
(x^2+2x^2)+(6x)+(7+-3)
=3x^2+6x+4
Cheers :3