Negative 7 Times Negative 7
7 times 7 is 49, but what is the reply if both 7 and 7 are negative numbers? Here nosotros will determine if the answer to negative vii times negative 7 is positive 49 or negative 49.
There are many dissimilar means to explain and determine if the answer to negative seven times negative 7 is -49 or +49 using mathematical terms such as condiment changed and mathematical laws like the Distribute Constabulary.
We will take a different approach - process of elimination: Nosotros will but test if -49 is the correct respond using basic algebra.
We will test if -49 is correct by setting up the equation negative 7 times negative 7 equals negative 49, and and then simplifying the equation to see if it is true.
(-7) (-vii) = (-49)
Separate both sides of the equation by (-vii) :
The numerator and denominator on the left side both accept (-7) which fifty-fifty each other out and can be removed:
The numerator and denominator on the right side both have a minus sign (-) which even each other out and can be removed:
A numerator of 49 and denominator of seven on the right side is the aforementioned every bit 49 divided by seven which is 7. Now we end up with this untrue equation:
(-7) = (vii)
-7 is Not equal to seven, thus we have proven that negative 7 times negative 7 is non equal to -49. The answer must therefore be 49:
-seven x -seven = 49
The to a higher place applies to all math bug where you multiply two negative numbers. Multiplying two negative numbers such as negative seven times negative 7 volition always have a positive reply.
Negative Times Negative Reckoner
Here you tin multiply another 2 negative numbers together.
What is negative seven times negative 8?
Here is the next problem on our list that we have explained and calculated.
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Negative 7 Times Negative 7,
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