Question Number 149171 by liberty last updated on 03/Aug/21

2^(2x ) + 4^(3x) = 128 ⇒x=?

Answered by Ar Brandon last updated on 03/Aug/21

2^(2x) +4^(3x) =128 ⇒ 4^x +4^(3x) =128 4^x =((((128)/2)+(√(((16384)/4)+(1/(27))))))^(1/3) +((((128)/2)−(√(((16384)/4)+(1/(27))))))^(1/3) ≈5,039687997−0,06614166≈4,973 546 336 x≈log_4 (4,973 546 336)≈1,157 137 459

Commented byliberty last updated on 03/Aug/21

Cardano

Answered by liberty last updated on 03/Aug/21