The value of g(-2a) according to the function defined by g(x) is; -4a² +10a +4.
According to the task content, it follows that the function given in the task content is; g(x)=-x^2-5x+ 4.
Hence, we have; g(-2a) is;
g(-2a) = -(-2a)² -5(-2a) +4
= -4a² +10a +4
Ultimately, the function evaluation of g(x) at x = -2a as required in the task content is; -4a² +10a +4.
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