Prove that the value of the expression can only be a positive numberc^2+4cd+4d^2+4

There is only addition and exponents there is no subtraction or negative numbers so the answer can only be positive

Step-by-step explanation:

the option best identifies the textual evidence that supports this conclusion is c.) when an argument is over, how many weighty reasons does a man recollect which his heat and violence made him utterly forget? in order to recognize textual evidence is to identify the topic sentence where the author states the main idea. textual evidence is what supports the topic sentence or main idea of a passage.