Q. Solve for the exact value of x.log7(6x)+4log7(3)=3Answer:
Apply power rule: Apply the power rule of logarithms to simplify the second term.The power rule states that logb(ac)=c⋅logb(a). We can apply this rule to the second term 4log7(3) to simplify it.4log7(3)=log7(34)
Rewrite using simplified term: Rewrite the equation using the simplified second term.log7(6x)+log7(34)=3
Combine logarithmic terms: Combine the logarithmic terms using the product rule.The product rule states that logb(a)+logb(c)=logb(a⋅c). We can combine the two logarithmic terms on the left side of the equation.log7(6x⋅34)=3
Calculate to simplify: Calculate 34 to simplify the equation further.34=3×3×3×3=81log7(6x×81)=3
Rewrite in exponential form: Rewrite the equation in exponential form.The equation log7(6x×81)=3 can be rewritten in exponential form as 73=6x×81.73=6x×81
Calculate value of x: Calculate 73 to find the value on the right side of the equation.73=7×7×7=343343=6x×81
Calculate value of x: Calculate 73 to find the value on the right side of the equation.73=7×7×7=343343=6x×81Divide both sides of the equation by 81 to solve for x.343/81=6xx=343/(6×81)
Calculate value of x: Calculate 73 to find the value on the right side of the equation.73=7×7×7=343343=6x×81 Divide both sides of the equation by 81 to solve for x.343/81=6xx=343/(6×81) Calculate the value of x.x=343/(6×81)x=343/48673=7×7×7=3430
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