exam Maths Puzzle Numerical Ability

solve by factoring

x^2 � 13x = -12

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exam Other Question

4ax+ by=11ab 8ax-5by= ab x=? y=? 3) In decomposing 8x-1 / (x+1)(x-2) one of the fractions obtained is:

a) 1 / x+1

b) 1 / x-2

c) 5 / x+1

d) 3 / x+1

e) 3 / x-2