exam Maths Puzzle Numerical Ability

2) If f(t)=2t squared minus 4t minus 1,find

a) f(2)

Answer:
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b) f(-1)
Answer:
Show your work here:

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exam Other Question

I need help solving exponetial inequalities using logartihms. i can get to this step- 2nlog8=4n+3log52.
I need to be informed and taught how to solve these types of problems. its on page 349.thanks