Simplify (-3)(-5)(-2)

Mathematics

2 answers:

fomenos4 years ago

8 0

The answer is -30 because -3 times -5 is 15 and times -2 is -30

enyata [817]4 years ago

4 0

The simple answer: -30.

How you get there:

Multiply two numbers at once. 5 x 3 = 15. 15 x 2 = 30.

You have three negatives in this problem. A negative multiplied by itself becomes positive, but then you have one more negative - so a negative times a positive is a negative. That is why your answer should be negative.

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$\left(\dfrac{8+x}{2},\dfrac{-7+y}{2}\right) =\left(\dfrac{4+8}{2},\dfrac{-7+(-3)}{2}\right)\\ \left(\dfrac{8+x}{2},\dfrac{y-7}{2}\right) =\left(\dfrac{12}{2},\dfrac{-10}{2}\right)\\ \left(\dfrac{8+x}{2},\dfrac{y-7}{2}\right) =\left(6,-5\right)\\$Therefore$:\\\dfrac{8+x}{2}=6\\8+x=12\\x=12-8\\x=4\\$Similarly$\\\dfrac{y-7}{2}=-5\\y-7=-5*2\\y-7=-10\\y=-10+7=-3$