plz give me answer...
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Step-by-step explanation:
8) USUAL FORM OF 8.3*10^4=830000 (d)
9) the square of a number is always raised to the power 2 for example
3²=3*3=9
10) -11xy+9x²-6y² is a polynomial
PLS MARK ME BRAINLIEST IF YOU LIKED THE EXPLANATION AND IF IT IS CORRECT
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