(a+b)² = a² + 2ab + b² (a-b)² = a² - 2ab + b² Where the formulas come from is easy to understand, because If I square something, I have to multiply it by itself If I now multiply all parts separately Then almost the first formula comes out And if I take a minus instead of a plus in the same one Then only one sign changes at the end If we look at a+b times a-b Then a²-b² remains The three equations we have just received Carry, how could it be otherwise, their own name But because it's already in the title of this song It's clear that it's about the binomial formulas (a+b)² = a² + 2ab + b² (a-b)² = a² - 2ab + b² And anyone who learns or studies And squares a sum in the process Should know that it's never true If you just take the sum of the squares of the addends, because (a+b)² = a² + 2ab + b² (a-b)² = a² - 2ab + b² (a+b)² = a² + 2ab + b² (a-b)² = a² - 2ab + b²(a+b)² = a² + 2ab + b² (a-b)² = a² - 2ab + b² Where the formulas come from, it's easy to understand, because If I take something to the power of 2, I have to multiply it by itself If I now multiply all the parts separately Then almost the first formula comes out And if this time I take a minus instead of a plus Only one single sign changes at the end When we look at a+b times a-b We're left with a²-b² The three equations we just obtained Carry, as it should, their own name But because it's already in the title of this song It's clear that it's about the Binomial Formulas (a+b)² = a² + 2ab + b² (a-b)² = a² - 2ab + b² And everyone who learns or studies And squares a sum along the way Should know that it's never right To just take the sum of the squares of the addends, because (a+b)² = a² + 2ab + b² (a-b)² = a² - 2ab + b² (a+b)² = a² + 2ab + b² (a-b)² = a² - 2ab + b²Where the formulas come from is easy to understand, because If I square something, I have to multiply it by itself If I now multiply all the parts separately Then almost the first formula comes out And if I replace the plus with a minus in the same Only one sign changes in the end If we look at a+b times a-b Then a²-b² remains The three equations we have just obtained Carry, as it must be, their own name But because it's already in the title of this song It's clear that it's about the Binomial Formulas (a+b)²=a²+2ab+b² (a-b)²=a²-2ab+b² And everyone who learns or studies And squares a sum in the process Should know that it's never true When you only take the sum of the squares of the summands, because (a+b)²=a²+2ab+b² (a-b)²=a²-2ab+b² (a+b)²=a²+2ab+b² (a-b)²=a²-2ab+b²