Find expert advice and community support for all your questions on IDNLearn.com. Our platform offers reliable and detailed answers, ensuring you have the information you need.
Sagot :
To find the value of [tex]\( m \)[/tex] in the equation
[tex]\[ \left(\frac{3}{5}\right)^{2 m} \times \left(\frac{9}{25}\right)^3 = \left(\frac{3}{5}\right)^{-2}, \][/tex]
we will follow a series of steps to simplify and solve the equation.
### Step 1: Rewrite [tex]\( \left( \frac{9}{25} \right)^3 \)[/tex]
First, observe that [tex]\( \frac{9}{25} \)[/tex] can be expressed as [tex]\( \left( \frac{3}{5} \right)^2 \)[/tex]:
[tex]\[ \left( \frac{9}{25} \right)^3 = \left( \left( \frac{3}{5} \right)^2 \right)^3. \][/tex]
### Step 2: Simplify the exponentiation
We know that [tex]\( \left( a^b \right)^c = a^{bc} \)[/tex]:
[tex]\[ \left( \left( \frac{3}{5} \right)^2 \right)^3 = \left( \frac{3}{5} \right)^{2 \times 3} = \left( \frac{3}{5} \right)^6. \][/tex]
### Step 3: Substitute and combine exponents
Now substitute [tex]\( \left( \frac{3}{5} \right)^6 \)[/tex] back into the original equation:
[tex]\[ \left( \frac{3}{5} \right)^{2m} \times \left( \frac{3}{5} \right)^6 = \left( \frac{3}{5} \right)^{-2}. \][/tex]
Next, use the property of exponents that [tex]\( a^b \times a^c = a^{b+c} \)[/tex]:
[tex]\[ \left( \frac{3}{5} \right)^{2m + 6} = \left( \frac{3}{5} \right)^{-2}. \][/tex]
### Step 4: Set the exponents equal to each other
Since the bases are the same, we can set the exponents equal to each other:
[tex]\[ 2m + 6 = -2. \][/tex]
### Step 5: Solve for [tex]\( m \)[/tex]
Solve the equation for [tex]\( m \)[/tex]:
[tex]\[ 2m + 6 = -2. \][/tex]
Subtract 6 from both sides:
[tex]\[ 2m = -2 - 6, \][/tex]
which simplifies to:
[tex]\[ 2m = -8. \][/tex]
Divide by 2:
[tex]\[ m = -4. \][/tex]
### Conclusion
The value of [tex]\( m \)[/tex] is:
[tex]\[ \boxed{-4}. \][/tex]
[tex]\[ \left(\frac{3}{5}\right)^{2 m} \times \left(\frac{9}{25}\right)^3 = \left(\frac{3}{5}\right)^{-2}, \][/tex]
we will follow a series of steps to simplify and solve the equation.
### Step 1: Rewrite [tex]\( \left( \frac{9}{25} \right)^3 \)[/tex]
First, observe that [tex]\( \frac{9}{25} \)[/tex] can be expressed as [tex]\( \left( \frac{3}{5} \right)^2 \)[/tex]:
[tex]\[ \left( \frac{9}{25} \right)^3 = \left( \left( \frac{3}{5} \right)^2 \right)^3. \][/tex]
### Step 2: Simplify the exponentiation
We know that [tex]\( \left( a^b \right)^c = a^{bc} \)[/tex]:
[tex]\[ \left( \left( \frac{3}{5} \right)^2 \right)^3 = \left( \frac{3}{5} \right)^{2 \times 3} = \left( \frac{3}{5} \right)^6. \][/tex]
### Step 3: Substitute and combine exponents
Now substitute [tex]\( \left( \frac{3}{5} \right)^6 \)[/tex] back into the original equation:
[tex]\[ \left( \frac{3}{5} \right)^{2m} \times \left( \frac{3}{5} \right)^6 = \left( \frac{3}{5} \right)^{-2}. \][/tex]
Next, use the property of exponents that [tex]\( a^b \times a^c = a^{b+c} \)[/tex]:
[tex]\[ \left( \frac{3}{5} \right)^{2m + 6} = \left( \frac{3}{5} \right)^{-2}. \][/tex]
### Step 4: Set the exponents equal to each other
Since the bases are the same, we can set the exponents equal to each other:
[tex]\[ 2m + 6 = -2. \][/tex]
### Step 5: Solve for [tex]\( m \)[/tex]
Solve the equation for [tex]\( m \)[/tex]:
[tex]\[ 2m + 6 = -2. \][/tex]
Subtract 6 from both sides:
[tex]\[ 2m = -2 - 6, \][/tex]
which simplifies to:
[tex]\[ 2m = -8. \][/tex]
Divide by 2:
[tex]\[ m = -4. \][/tex]
### Conclusion
The value of [tex]\( m \)[/tex] is:
[tex]\[ \boxed{-4}. \][/tex]
Your presence in our community is highly appreciated. Keep sharing your insights and solutions. Together, we can build a rich and valuable knowledge resource for everyone. Thanks for visiting IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more helpful information.