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I know at first a lot of the formulae or techniques you use in maths may at first seem pointless, especially if you’re not planning on going into a scientific or mathematical field, but a lot of the thing...
rearrange equation (a) to be: y = 6 + 2x. Substitute this into equation (b) to get: (6 + 2x) + 2x = 0
rearrange this to get: 6 + 4x = 0. Simplify to get x = -(6/4). Get the val...
I would go through one of the problem on the interactive board with the student and ask them to try next question alone.
1a) To simplify this into one expression you first multiply together the co-efficients, therefore 2a x a = 2a. Then for indices when they are multiplied together you add them, so the simplification would ...
Sub in f(x)=53 into equation. So you have 53=2x^2+3, deduct 3 from both sides to get 50=2x^2 and then divide each side by 2 to get 25=x^2 and finally square root both sides to get x=5 or x=-5.
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