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(using Pythagoras' theorem) 6.5² = x²+ 1.5² x²= 6.5²- 1.5² x²= 42.25 - 2.25 x² = 40 x = sqrt(40) x ...

There are different rules when it comes to indices. First of all we will look at the example of multiplying two expressions . For example, y² x y⁴ . Here we need to do the addition r...

5th Term is a+18b=442nd term is a+ 6b=8subtract the two equations from eachother to get 12b=36 rearrange so that b=36/12=3 substitute b=3 into any of the above equations to get a; a=8-(6x3) = -10 so a=-10...

i) x² + y²- 6x - 4y + 4 = 0 x²- 6x + y² - 4y + 4 = 0 group the terms together x²- 6x = (x - 3)² - 9 factorise the x ter...

To find the quotient and remainder of an algebraic division we use a technique similar to long division at GCSE. I think the best and easiest way to learn this method is to go through an example. See the ...