book Maths Puzzle Numerical Ability

please help me solve the following problems.

p(t+1)= -2 solve for t I started off by multiplying.

pt +p1 = -2
pt/P = -2-p/p (/ means fraction)

t = -2-1
t =-3


t

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book Other Question

please show me the work on this problem

8x^2+33x+4= ????
solve each proportion.

2/7 = x/-42
5/12 = (x+1)/4
(n+8)/-5=(n-3)/-1
(5-w)/(3+w)=13/12

any idea on these?
im absolutely clueless...