15=15:-15=-15:9-24=25-40:9-2X3X4=25-2X5X4:9+16-2X3X4=25+16-2X5X4:(3-4)^2=(5-4)^2:(3-4)=(5-4):(3)=(5)

Dear alura

(3-4)^2=(5-4)^2

after that u can't write

(3-4)=(5-4)

because aquare root of any number can not be negaive

you should write

(4-3)=(5-4)

 1 =1

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