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34+15(x+3)²=(-13)²
x∈|R


Răspuns :

34+15(x+3)²=(-13)²=> 34 + 15 (x +3 )²=169 / - 34 => 15(x+3)²=135/ :15 =>x+3 =[tex] \sqrt{9} [/tex] => x+3 = 3 => x = 0