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what is the answer to this question

what is the answer to this question class=

Verified Answer :

MohamedSharif

(3x^-4)^2(5x^-2)
3^2=9
x^-2*2=x^-8
now multiply the whole numbers 
9 x 5=45
in multiplication add the powers
x^-2+-8
x^10
answer= 45 x^10

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