Please help ASAP I'm struggling so bad, if you are good at math I have a lot of questions I need answered, I am doing an exam for my friends for money I really need, but I have to get a C or higher... I am desperate.

In mathematics, division by zero is division where the divisor (denominator) is zero. Such a division can be formally expressed as a/ 0 where a is the dividend (numerator). In ordinary arithmetic, the expression has no meaning, as there is no number which, when multiplied by 0, gives a (assuming a ≠ 0), and so division by zero is undefined. Since any number multiplied by zero is zero, the expression 0/0 is also undefined.

So, based on this function, we can calculate the number of "x" by the equation below

3x²-12x=0 and 4x-16=0;

4x-16=0 --> 4x=16 --> x = 16/4 = 4
3x²-12x=0 --> 3x²=12x --> x²=4x --> x=4