Solve each exponential equation Please show all work 3a No L
Solve each exponential equation.
Please show all work.
3a) No Logs are required. Use property 0. Solve 32x+1=(1/9)
3b) Logs are required. Use Property 1 Solve 32x+1=5 Round answer to 4 decimal places.
3a) x = ______
3b) x = ______
Solution
Solution:
Given The Equation
3a) 32x+1=(1/9)
Maltiply by both sides on 9
32x * 9+1*9 = 1/9*9
288x+9 = 1
Substract 9 from both sides
288x + 9 - 9 = 1 - 9
288x = - 8
x = -8/288
x = -1/36
3b) 32x+1=5
log(32x+1) = log5
32x+1 = 5
Subtract 1 from both sides
32+1 - 1 = 5 - 1
32x = 4
x = 4/32
x = 1/8
Therefore
x = 0.125
