Question 467671
1. Simplify the expression.
square root -128 square root -16 
= (8sqrt(2)i (4i)
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= -32sqrt(2)
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4.Multiply the expressions, and simplify. 
(2x^-4y^-4) · (-7x^4y^-2)
= -14x^0*y^-6
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= -14/y^6
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5.Short Answer: Simplify the following expression, and rewrite it in an equivalent form with positive exponents. 
(6x^-1)^-2 
= (1/36)x^2
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6.Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression. 
(-2x^9y^4)^4
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= 16x^36y^16
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Cheers,
Stan H.
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