mdejazulhaque1972 mdejazulhaque1972

17-10-2021
Mathematics

contestada

Question ❓:-
4^(x+2)+2^(2x+1)-36=0,x=?

Respuesta :

mhanifa mhanifa

17-10-2021

Answer:

x = 1/2

Step-by-step explanation:

[tex]4^{x+2}+2^{2x+1}-36=0[/tex]
[tex]16*4^x+2*2^{2x}-36=0[/tex]
[tex]16*4^x+2*4^x-36=0[/tex]
[tex]18*4^x = 36\\\\[/tex]
[tex]4^x=2\\\\[/tex]
[tex]2^{2x}=2^1\\[/tex]
[tex]2x=1\\[/tex]
[tex]x = 1/2[/tex]

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