How would one multiply out brackets?
If asked to multiply out a set of brackets, one must remember to multiply each term in a set of brackets by every term in the other set of brackets. For example, (x+2)(x-4) = x2+2x-4x-8 = x2-2x+8. An incorrect answer would be x2+2x-4 where I have erroneously only multiplied the first term in the second bracket by the first bracket.
AR
Related Maths GCSE answers
All answers ▸Sophie had 3 piles of coins, A, B and C. Altogether there was £72. Pile B had twice as much as pile A. Pile C had three times as much as pile B. How much money was in Pile C?
2x + y = 1, x^2 + y^2 = 1
Jodie buys 12 cans of cola. There are 330 ml of cola in each can. Rob buys 4 bottles of cola. There is 1 litre of cola in each bottle. Rob buys more cola than Jodie. How much more?
Solve the simultaneous equations: 2x-3y = 16 x+2y= -6