Y1 Pure 1.4

Negative and fractional indices

Examples of negative indices

Examples of positive rational (fractional) indices

+B1-04 (negative)

More complicated examples

+B1:06-10 (changing bases)

Y1 Pure 1.3

Factorising

Factorising quadratics of the form x^2 + bx + c

+B3-03 (a not 1)

Factorising quadratics using the difference of two squares

Factorising quadratics using a calculator

Y1 Pure 1.6

Rationalising denominators

Intro: rationalising the denominator, part 1

+B2:09-11 (examples and part 2)

More complicated examples of rationalising the denominator

+B2-12

Solving equations with surds

+B2:14-16