Identify Components: We are given the function G(z)=(1−9z)2z2+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 2, and a square root of a binomial.
Simplify Binomial: The second step is to simplify the binomial (1−9z)2. This is done by squaring both terms in the binomial and combining like terms.(1−9z)2=(1−9z)⋅(1−9z)=12−2⋅(1)⋅(9z)+(9z)2=1−18z+81z2
Simplify Square Root: The third step is to simplify the square root z2+1. Since there is no further simplification that can be done to this term, we leave it as is.z2+1 remains unchanged.
Combine Terms: The fourth step is to combine the simplified terms from step 2 and step 3 to write the simplified form of the function G(z).G(z)=(1−18z+81z2)⋅z2+1This is the simplified form of the function.
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