work out 3 1/2 - 2 1/3. Give answer as an improper fraction

change everything to sixths. 21/6 - 14/6 = 7/6

MS

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0.15^2 x (1-0.15)^3 to 2 s.f


Given that x(a+bx)(a-bx)=25x-4x^3, what is the value of b^(-a)? a,b>0


Simplify, leaving your answer as a quadratic: (2x + 3)/(x+4) - (3x - 6) = 4


Whats the inverse of y = 2x+1/x-1 ?