4(x^2+4x)+3(y^2-2y)
complete the square on x by within the parentheses. complete the square on y by within the second parentheses. thus, to the right of the equation.

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

answer4 to the second power is 16

and 4 to the third power is 64,