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Explain why negative times a negative will result in positive answer?

I would do it but I'm not good at math and it's 12 right now, so quite frankly that won't increase the way I'm good at math....at all...actually it makes me quite worse. frostedgirl1 posted Vor mehr als einem Jahr
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Zufällig Antwort ssook78 said: Because if its the oppisite like...for example Du have a positive times a positive Du get a negative Now Du have a negative times a negative and it will still be a positive But if Du have negative times positive oder positive times negative Du would get a positive The trick is that if there is a negative it will equal to a positive Edited~ posted Vor mehr als einem Jahr
Okay I got it thanks!!!
frostedgirl1 posted Vor mehr als einem Jahr CheetahGirl5147 said: *poker face* posted Vor mehr als einem Jahr blackpanther666 said: If we can agree that a negative number is just a positive number multiplied Von -1, then we can always write the product of two negative numbers this way: (-a)(-b) = (-1)(a)(-1)(b) = (-1)(-1)ab For example, -2 * -3 = (-1)(2)(-1)(3) = (-1)(-1)(2)(3) = (-1)(-1) * 6 So the real Frage is, (-1)(-1) = ? and the answer is that the following convention has been adopted: (-1)(-1) = +1 This convention has been adopted for the simple reason that any other convention would cause something to break. For example, if we adopted the convention that (-1)(-1) = -1, the distributive property of multiplication wouldn't work for negative numbers: (-1)(1 + -1) = (-1)(1) + (-1)(-1)      (-1)(0) = -1 + -1 0 = -2 As Sherlock Holmes observed, "When Du have excluded the impossible, whatever remains, however improbable, must be the truth." Since everything except +1 can be excluded as impossible, it follows that, however improbable it seems, (-1)(-1) = +1. posted Vor mehr als einem Jahr
Debt Debt is a good example of a negative number. One common form of debt is a mortgage in which Du owe the bank money because the bank paid for your house. It is also common for an employer to deduct a mortgage payment from an employee's paycheck to help the employee keep on schedule with the payments. Suppose \$700 is being deducted each Monat to pay the mortgage. After six months, how much money has been taken out of the pay for the mortgage? We can figure out the answer Von doing multiplication. 6 * -\$700 = -\$4,200 This is an illustration of a positive times a negative resulting in a negative. Now suppose that, as a bonus, the employer decides to pay the mortgage for one year. The employer removes the mortgage deduction from the monthly paychecks. How much money is gained Von the employee in our example? We can represent "removes" Von a negative number and figure out the answer Von multiplying. -12 * -\$700 = \$8,400 This is an illustration of a negative times a negative resulting in a positive. If one thinks of multiplication as grouping, then we have made a positive group Von taking away a negative number twelve times.
blackpanther666 posted Vor mehr als einem Jahr