[15x 3(y2)-3 / 20(x-3)3y7]-2

Dear experts, 
Please solve algebraic expression using suitable laws of exponents.  

 

Dear Student,15x3y2-320x-33y7-2= 3x3y-64x-6y7-2= 3x3+64y7+6-2= 3x94y13-2= 4y133x92= 16y269x18
Regards

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