Question

(9(x^8)(y^4))*((1/3)(x^4)(y^6))

Answer 1

Answer: 3x^12y^10

Remove unnecessary parenthesis

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9x^8y^4*1/3x^4y^6

Reduce the numbers with greatest common divisor 3

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3x^8y^4x^4y^6

Multiply the terms with the same base by adding their exponents

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3x^8+4y^4+6

Add the numbers

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3x^12y^10

I tried my best :)

Hope this helps!