A diagonal line is a line segment joining two nonconsecutive vertices of a polygon. if you mean that every sloping line,then all lines could be considered diagonal
Answer:
7x^2+15x+31
Step-by-step explanation:
(3x+5)(x+5)
FOIL
3x^2+15x+5x+25
(3x^2+20x+25)+(4x^2-5x+6) = 7x^2+15x+31
Answer: The answer is D
Step-by-step explanation: