Q. Solve for the exact value of x.5ln(8x+1)−2=28Answer:
Addition to isolate logarithm: Isolate the natural logarithm term by adding 2 to both sides of the equation.5ln(8x+1)−2+2=28+25ln(8x+1)=30
Division to solve logarithm: Divide both sides of the equation by 5 to solve for the natural logarithm of the expression.55ln(8x+1)=530ln(8x+1)=6
Exponentiation to remove logarithm: Exponentiate both sides of the equation to remove the natural logarithm, using the property eln(x)=x.eln(8x+1)=e68x+1=e6
Subtraction to isolate x term: Subtract 1 from both sides of the equation to isolate the term with x. 8x+1−1=e6−18x=e6−1
Division to solve for x: Divide both sides of the equation by 8 to solve for x. 88x=8e6−1 x=8e6−1
More problems from Find derivatives of sine and cosine functions