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Algebra Level 1

x ( x 4 + 13 x 3 ) x 5 + 13 x 4 \large \dfrac { x({ x }^{ 4 }+13{ x }^{ 3 }) }{ { x }^{ 5 }+13{ x }^{ 4 } }
Find the value of the expression
x ≠ 0 x\neq 0 or -13

1 Undefined Not Possible 2 0.1 3 0.132 0

Brian Wang by Brian Wang , 19, USA

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1 solution

Brian Wang
Oct 12, 2015

The top part of the equation simplifies to x 5 + 13 x 4 {x}^{5}+{13}{x}^{4}
A number divided by itself is 1, unless it is 0.
X doesn't equal 0, So the answer is 1.

0 Helpful 0 Interesting 0 Brilliant 0 Confused

What if x = − 13 x = -13 ?

Sudeep Salgia - 5 years, 8 months ago

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Missed that while writing the problem, thanks

Brian Wang - 5 years, 8 months ago

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