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Radicals and rational exponents: foundations
■ Google Classroom
The equation 
2^(c)*b^(c)=10^(c) is true for all values of 
c. What is the value of b?

dvanced-math-easier/xOfcc9898a5858ba33bea77radicals-and-rational-exponents-easier/e/v22-radicals-and-rational-ex\newlineQ\newlineKhan Academy\newlineCet Al Tutoring\newlineNEW\newlineRadicals and rational exponents: foundations\newline■ Google Classroom\newlineThe equation 2cbc=10c 2^{c} \cdot b^{c}=10^{c} is true for all values of c c . What is the value of b?

Full solution

Q. dvanced-math-easier/xOfcc9898a5858ba33bea77radicals-and-rational-exponents-easier/e/v22-radicals-and-rational-ex\newlineQ\newlineKhan Academy\newlineCet Al Tutoring\newlineNEW\newlineRadicals and rational exponents: foundations\newline■ Google Classroom\newlineThe equation 2cbc=10c 2^{c} \cdot b^{c}=10^{c} is true for all values of c c . What is the value of b?
  1. Given Equation: We are given the equation 2cbc=10c2^{c} \cdot b^{c} = 10^{c}. To find the value of bb, we need to isolate bb on one side of the equation.
  2. Simplify Equation: Since the equation is true for all values of cc, we can simplify the equation by removing the exponent cc from all terms. This is possible because if axbx=cxa^x \cdot b^x = c^x, then ab=ca \cdot b = c.
  3. Remove Exponent: We remove the exponent cc from all terms to get 2×b=102 \times b = 10.
  4. Solve for b: Now, we solve for bb by dividing both sides of the equation by 22.b=102b = \frac{10}{2}
  5. Evaluate Division: Evaluating the division gives us the value of bb.b=5b = 5

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