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G(z)=(19z)2z2+1G(z)=(1-9z)^{2}\sqrt{z^{2}+1}

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Q. G(z)=(19z)2z2+1G(z)=(1-9z)^{2}\sqrt{z^{2}+1}
  1. Identify Components: We are given the function G(z)=(19z)2z2+1G(z)=(1-9z)^{2}\sqrt{z^{2}+1}. The first step is to identify the components of the function that can be simplified separately. The function consists of two parts: a binomial raised to the power of 22, and a square root of a binomial.
  2. Simplify Binomial: The second step is to simplify the binomial (19z)2(1-9z)^{2}. This is done by squaring both terms in the binomial and combining like terms.\newline(19z)2=(19z)(19z)(1-9z)^{2} = (1-9z)\cdot(1-9z)\newline=122(1)(9z)+(9z)2= 1^{2} - 2\cdot(1)\cdot(9z) + (9z)^{2}\newline=118z+81z2= 1 - 18z + 81z^{2}
  3. Simplify Square Root: The third step is to simplify the square root z2+1\sqrt{z^{2}+1}. Since there is no further simplification that can be done to this term, we leave it as is.z2+1\sqrt{z^{2}+1} remains unchanged.
  4. Combine Terms: The fourth step is to combine the simplified terms from step 22 and step 33 to write the simplified form of the function G(z)G(z).G(z)=(118z+81z2)z2+1G(z) = (1 - 18z + 81z^2) \cdot \sqrt{z^{2}+1}This is the simplified form of the function.

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