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2 years ago

Describe the error then simplify the expression correctly. -5(3+6)=-15+30 =15

Mathematics

2 answers:

Rama09 [41]2 years ago

4 0

Answer: 30 should be negative

Step-by-step explanation:

when having an equation like that, you must multiply -5 by 3, which equals to -15, then multiply-5 by 6 which then equals to -30. The correct equation should be -5(3+6)= -15+-30= -45

I think this should be correct, hope this helps!

Mila [183]2 years ago

4 0

Answer:

a) The negative was not distributed to the 6

b) -45

Step-by-step explanation:

This simplification uses the distributive property. This is when a factor outside of parentheses is multiplied by the factors within the parentheses. When using this property, if the factor outside the parentheses is negative, then that negative must be distributed to both factors within the parentheses.

The correct way to simplify the expression is as follows:

-5(3+6)

Multiply -5*3 and -5*6

-15 + -30

Rewrite this using subtraction

-15-30

Subtract

-45

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