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Well, you can factor this.

(10X^2 + 5X)/5x

5X(2X + 1)/5X

cancel 5X; top and bottom

2X + 1

set to 0 and see

2X+ 1 = 0

2X = - 1

X = -1/2

-----------check to see what we get

[10(- 1/2)^2 + 5(- 1/2)/5(- 1/2)

10/4 - 5/2/- 5/2

5/2 - 5/2/- 5/2

= 0

----------- I think so because my TI-84 agrees with this answer

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Q: What is 10x squared plus 5x divided by 5x?
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