2 years ago

Expand and simplify: (2x − 5y) (x + 3y)

Mathematics

1 answer:

zavuch27 [327]2 years ago

7 0

(2x - 5y) (x + 3y)
2x^2 + 6xy - 5xy - 15y^2
2x^2 +xy - 15y^2

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If the side length of a cube is 40 what is the surface area

Elodia [21]

A cube has 6 sides.

A cube is all made up of squares.

So, we need to find the area of one cube and multiply that by 6.

Length * width= area

40*40= 1,600

Multiply that by 6.

1,600*6= 9600

Whatever the unit is after that: in, feet, cm, m, etc- put that after the number with ^2.

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I hope this helps!
~kaikers

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