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f(x)=(12x)4(x21)8f(x) = (1-2x)^4 \sqrt{(x^2-1)^8}

Full solution

Q. f(x)=(12x)4(x21)8f(x) = (1-2x)^4 \sqrt{(x^2-1)^8}
  1. Simplify Square Root: First, let's simplify the square root part of the function.\newline(x21)8=(x21)4\sqrt{(x^2-1)^8} = (x^2-1)^4, since raising to the 8th8^{\text{th}} power and then taking the square root is the same as raising to the 4th4^{\text{th}} power.
  2. Simplify Entire Function: Now, let's simplify the entire function. f(x)=(12x)4(x21)4f(x) = (1-2x)^4 \cdot (x^2-1)^4
  3. Combine Exponents: We can combine the exponents since they are the same. f(x)=[(12x)(x21)]4f(x) = [(1-2x)(x^2-1)]^4
  4. Expand Terms Inside Brackets: Let's expand the terms inside the brackets before raising to the 4th4^{\text{th}} power.\newline(12x)(x21)=x212x3+2x(1-2x)(x^2-1) = x^2 - 1 - 2x^3 + 2x

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