exam Maths Puzzle Numerical Ability

Given f(x) = -x3 - 3x2 - 2x - 6, find f(-3), f(0), and f(3)
Now do I have to substitue a number for x? I am so confused!! Thanks for your help!

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exam Other Question

solve the inequality:

7q-1+2q<29
THANK YOU SO MUCH FOR HELPING ME

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