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x*ln|x| - x

The idea here is to explain to the student that i^2=-1, and to expand and simplify the brackets in question just like they would with simple algebra. Therefore:
(5+3i)*(3+5i)=15+25i+9i+15i^2=15+34i-1...

Halogen atoms like chlorine and iodine usually react by gaining an electron to fill their outer energy level in order to resemble the noble gases which are more stable. Chlorine is a smaller atom than iod...

Reflex reactions are subconscious, they bypass the brain. Receptors detect a sensory stimulus, in this case- pain. Receptors stimulate sensory neurons, creates an electric impulse which travels to the spi...

When expanding quadratics, the ‘smiley face’ method is the easiest one to follow. Do each term individually. The lines you draw between the terms will resemble a smiley face. Ensure that there are 2 lines...