Question

resolva , em |R , as equações a) 64×=256 b) 25×+2=125×+5 c) (8/125)2×-1=(25/4)2× d)52×-1=1 e)7×=8× f)

Answer 1

a) x=256/64 =4 b)25x-125x=5-2⇒-100x=3⇒x=3/11 c)16x/125-1=50x/4⇒-1=50x-4-16x/125⇒-1=2250x-64x/500⇒2186x=-500⇒x=-500/2186=-250/2186 d)52x=2⇒x=26