book Maths Puzzle Numerical Ability

expand the brackets in the following

x(3-y)
(x+1)(x+2)
az(z2+bz)
(x+y)(x-y)

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book Other Question

Can you help me solve this equation? -3x+5=2x-10 I need to solve this equation:
a*x+b*log(x)+c=0
Thanks a lot!