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Darian S.
Freshman at Calvin College
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Calculus
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Question:

solve $$\int\mathrm{4x^{3}},\mathrm{d}x$$

Darian S.

$$\int\mathrm{4x}^{3},\mathrm{d}x = x^{4}+C$$

Algebra
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Question:

solve $$x^{2} + 4x + 5$$ by completing the square.

Darian S.

$$( x + 2 + 2^{2} ) + 5+2^{2}$$ $$= (x+2)^{2} +9$$ $$(x+2)^{2}=-9$$ $$(x+2) =$$ +/- $$\sqrt{-9}$$ $$x+2=$$+/- $$i3$$ $$x= -2+i3, -2-i3$$

Physics
TutorMe
Question:

In the absence of air resistance, which would fall faster: a brick or a feather?

Darian S.

Both would fall at the same speed because acceleration due to gravity isn't affected by the weight of the object.

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