Plz simplify this question fast.
4r2 (3r-5)-2r2(6r-10)  .                              ( the 2 after 4r and 2r are squared.)                  

Dear Student,

4r23r-5-2r26r-10= 4r23r-5-2r2×23r-5= 3r-54r2-4r2=0 Ans

Regards

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plz be fast
 
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