valuate the function h(x) = x4 + 7x² +3 at the given values of the independent variable and simplify. a. h(3) b. h(-1) c.h(-x) d.h(3a) a. h(3)= b. h(-1)= c.h(-x) = d. h(3a)= (Simplify your answer.) (Simplify your answer.) (Simplify your answer.) (Simplify your answer.) ...

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