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anonymous
 5 years ago
Add. Simplify by removing factors of 1if possible
28zx + z7x
 
z^249x^2 z+7x
anonymous
 5 years ago
Add. Simplify by removing factors of 1if possible 28zx + z7x   z^249x^2 z+7x

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dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0First factor bottom (z7x)(z+7x) This shares the (z+7x) in other denominator so common denominator will be (z7x)(z+7x) multiply 2nd fraction by (z7x) on top and bottom \[=\frac{28xz +(z7x)(z7x)}{(z7x)(z+7x)}\] expand the top and add like terms \[=\frac{z^{2} + 49x^{2}}{(z7x)(z+7x)}\] top will not factor so this is answer
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