Expand these brackets 3x(x - 2)

3x(x-2)You do 3x times everything in the bracket so 3x * x = 3x2 and 3x * -2 = -6x (negative * a postive = a negative)Then combine the two to give you 3x2 - 6x

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Simplify fully 3(3 – x) – 2(x – 4)


Solve x^2 + 5x -14 = 0


a) If x=4, work out 3(x^2). b) Solve 6x-3=x+11


Solve the simultaneous equations; 5x + 2y = 11, 4x – 3y = 18