Q. Assuming x and y are both positive, write the following expression in simplest radical form.6xy228x6y2Answer:
Factor and Separate Perfect Squares: Factor the expression inside the square root to separate perfect squares from non-perfect squares. 28x6y2 can be factored into 4×7×x6×y2. 4 and x6 are perfect squares, so they can be taken out of the square root. 4×7×x6×y2=4×x6×7×y2
Simplify Perfect Squares: Simplify the square roots of the perfect squares. 4=2, x6=x3, and y2=y because x and y are positive. So, we have 2×x3×y×7.
Multiply by Outside Term: Multiply the simplified square roots by the outside term 6xy2.6xy2×(2×x3×y×7)=6×2×x×x3×y2×y×7
Combine Like Terms: Combine like terms by adding the exponents for x and y.6×2=12, x×x3=x1+3=x4, y2×y=y2+1=y3. So, we have 12×x4×y3×7.
Write Final Expression: Write the final simplified expression.The expression in simplest radical form is 12x4y37.
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