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You bring the power down to multiply by the existing coefficient of x =1 in this case, and then you reduce the existing power by 1 leaving you with dy/dx= 2x.

In algebra, long expressions can be simplified which makes them easier to solve. We can simplify alebraic expressions by collecting together "like terms". When looking at an expressions such as: 5x...

You would use the quadratic formula when trying to find the value of a variable such as x in a quadratic equation but it can not be successfully factorised with whole numbers. Treating the the equation in th...

Factorising is a way of 'converting' an equation into a form with brackets in order to make it more useful and easier to manipulate. It is the reverse of expanding an equation. For example: To factorise the ...

Expand 5( x - 4) To expand the brackets, you must mutilpy the number outside the bracket by everything inside. Step 1) 5 x x = 5 x Step 2) 5 x (-4) = -20 Remember to include the minus sign Adding the answers...