Coefficient and Exponent
Coefficient is The number in front of the variable.
Ex. 3x + 10x = 13x The coefficients are 3,10,13.
Exponent is the power of something.
Scientific Notation is how people make large numbers smaller when it's still the same value. Ex. 1000000 turns into 1x10^6. You have to turn the number so its smaller than 1 and bigger than 0. If the number is a decimal the power is negative. Ex. .00001 turns into 1x10^-5