What is 5 1/4 ÷ -2 1/2 equal as a mixed number and simplified form

This is first a division problem, and secondly a division problem involving one negative quantity.  The correct rewrite of this expression will therefore be negative:

- (5 1/4 ÷ 2 1/2).  

Rewrite 5 1/4 as 21/4 and 2 1/2 as 5/2.  Then we have:

- (21/4) ÷ (5/2),

which is equivalent to:

- (21/4) * (2/5) = - 42/20 = -21/10, or -2 1/10.

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step-by-step explanation:

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hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb