book Maths Puzzle Numerical Ability

Please help me with these problem..
solve by any method.
1)x^2+25=10x
2)10h-2=11h^2

Read Solution (Total 1)

book Other Question

Please explain compounding expand the brackets in the following

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