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3^(2x+1)-18^(3x)-81=0​
I need the answers urgently please

2 Answers

3 votes

Answer:0.013353877

Explanation:

3^(2x+1)-18^(3x)-81=0. follow PEMDAS. perenthesis, exponents, */+-

3^2=9 and 3^1 = 3, so

9x+3-18^(3x)-81=0

18^3= 5832, so

9x+3-5832x-81=0

9x+5832x= 5841x, because combining the like terms helps you narrow down an equation with two variables

5841x+3-81=0

0-3+81=78, because you need to try to isloate x. when you bring it to the other side of the equal side, the + turns into a - and a - turns into a +

5841x=78

x= 78/5841

x= 0.013353877

please let me know if i am making a mistake

User SulNR
by
8.2k points
3 votes

Answer:idk

Explanation:

idk

User Jesse Emond
by
9.0k points

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