a) 2x, raiz de 125 e x
b) x , 14 e 7raiz de 5
a)25=5x²
x²=25/5
x²=5
x=raoiz de 5
b)245=x²+196
245-196=x²
x²=49
x=7
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Verified answer
a)25=5x²
x²=25/5
x²=5
x=raoiz de 5
b)245=x²+196
245-196=x²
x²=49
x=7