Why is the product of two negative numbers always a positive number?
Why does multiplication of two negative numbers produce a positive number?
Can negative numbers be rational numbers? If not, why? Is every negative number a rational number? Why or why not? Is a negative number raised to the power of 0 -1? What is the reciprocal of a negative number? How do you add and subtract positive and negative numbers? Can you square a negative number and get a number that is not a real number? If Imaginary numbers were made to deal with negative roots, why hasn't a similar convention been made for the division of zero? How do you add, subtract and multiply positive and negative numbers? How can the negative reciprocal of a number be found on a calculator? How many positive numbers less than 1000 are divisible by 6 but not by 5? Why number 2 is not a multiple of number 4? Does multiplication of two irrational numbers make an irrational number? Are square roots of negative numbers always imaginary? Why minus multiplied by minus is plus? Why is 1+1 equal to 2 but not 11? Why is 2+2=4 and 2x2=4, 2^2=4 yet 3+3=6, but 3x3=9, 3^3=27? I mean why is 2 the only number with an equal sum and multiplication value? Why does 1+1 is equal to 2? Why is the sum of all real numbers not equal to zero? How are negative numbers represented in binary? Why is 0/1 equal to zero? Is zero a positive integer? How do you explain -1 * -1 = +1 to a 4-year-old (or product of two negatives is positive)? Why is anything raised to the power zero is one, but multiplied by zero is zero? How do I perform multiplication of two numbers in C by using only + operator? Why is 1+1 = 2, but not 11? Is square root of negative numbers imaginary? Is there a mathematical function that converts two numbers into one so that the two numbers can never be extracted again? Given [math]S_n = n^2 +20n + 12[/math]. What will be the sum of positive integers such that [math]S_n[/math] will be a perfect square? Why isn't 0/0 not equals to 1? Why is X to the power of 0 equal to 1?