The function $$\(\mathrm{f}\)$$ is defined by $$\(\mathrm{f}(x)=2 x^{2}+3\)$$ for $$\(x \geqslant 0\)$$. Find and simplify an expression for $$\(\operatorname{ff}(x)\)$$. .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................... ....................................................................................................................................................
Exam No：9709_s21_qp_12 Year：2021 Question No：5(a)
Answer:
\(\mathrm{ff}(x)=2\left(2 x^{2}+3\right)^{2}+3\)
\(8 x^{4}+24 x^{2}+21\)
\(8 x^{4}+24 x^{2}+21\)
Knowledge points:
1.2.2 identify the range of a given function in simple cases, and find the composition of two given functions
Solution:
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