Step-by-step explanation:
A quadratic graph will surely help you find the solutions
X2-x-2=0
x1=2 x2= -1
Substitute each of the x value in the original equation to get the y value
(2)^2-(2)-2= 0 (2,0)
(-1)^2-(-1)-2=-2 (-1,-2)
plot the coordinates on the graph,the graph should be a curve
Answer:
D
Step-by-step explanation:
5x-2+2x+1
5x+2x+1-2
7x-1

has y = 0 as a solution.
Selection B is appropriate.
Answer:
x>4
Step-by-step explanation:
because x is greater than 4