A)First, let's simplify the left side of the equation:(1/3)^4 = 1/81(1/3)^4 2x = (1/81) 2x = 2x/81
Now, the equation becomes:2x/81 = 9
To solve for x, multiply both sides by 81:2x = 729
Divide by 2:x = 729/2x = 364.5
Therefore, the solution to equation A is x = 364.5.
B)To solve this equation, first isolate the logarithm:log0.1(x^2 - 3x) = -1
Rewrite the equation in exponential form:0.1^(-1) = x^2 - 3x
Calculate the value of 0.1^-1:10 = x^2 - 3x
Rearrange the equation and set it to zero:x^2 - 3x - 10 = 0
Now, this is a quadratic equation that can be factored or solved using the quadratic formula to find the solutions for x.
A)
First, let's simplify the left side of the equation:
(1/3)^4 = 1/81
(1/3)^4 2x = (1/81) 2x = 2x/81
Now, the equation becomes:
2x/81 = 9
To solve for x, multiply both sides by 81:
2x = 729
Divide by 2:
x = 729/2
x = 364.5
Therefore, the solution to equation A is x = 364.5.
B)
To solve this equation, first isolate the logarithm:
log0.1(x^2 - 3x) = -1
Rewrite the equation in exponential form:
0.1^(-1) = x^2 - 3x
Calculate the value of 0.1^-1:
10 = x^2 - 3x
Rearrange the equation and set it to zero:
x^2 - 3x - 10 = 0
Now, this is a quadratic equation that can be factored or solved using the quadratic formula to find the solutions for x.