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1. Evaluate 8x(2)y9(-2) for x=-1 and y=2
2. Simplify the equation. -(10)(-2)
3. Simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]

Respuesta :

1. 8-1(2)2(9)(-2) = 8+72 = 80
2. -(10)(-2) = 20
3. - 1/18xy

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