exam Maths Puzzle Numerical Ability

x^2+3x-4/(x+4)^2x^2+4x/x^2-2x+1

=3x-4/(x+4)^24x/x^2+4x/-2x+1
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exam Other Question

v-4(4-v)=-2(2v-1)
9-2m/7+19
3(x-0.87)-2x=4.98 which of the following is the equivalant to the rational number x-2/x(x+2)
a. 4x-8/-4x
b. 4x/4x^2-2x
c. x-8/2x^2-8x
d. 4x-8/4x^2-8x