For the first picture 1,special attention should be payed to multiplying out the numerator. Also, be careful when distributing negative numbers, you must distribute the negative to everything in the parentheses, then combine like terms. For the second picture the viewer should be careful when
writing the equations. It is important to copy correctly and not forget any negative signs. It is also crucial the viewer remembers to cancel out the x's.
For the third picture plug in the coefficients into the
calculator. It is crucial you plug in the right numbers or else you will get the wrong answer. It is important to recheck what you plugged in. Follow the necessary steps to find the ordered triple. The viewer should be able to follow the steps as stated in the image. It is important not to forget the closing parentheses! The fourth column provides the ordered triple, notice that these are the numerators of the original equation found in part 1.