Factorization

SIMPLIFYING CALCULATIONS BY FACTORISATION AND SUBSTITUTION

EXAMPLE:

1. Simplify 34 x 48 + 52 x 34

Solution:

34 is a common factor of 34 x 48 and 52 x 34.

Thus, 34 x 48 + 52 x 34 = 34(48 + 52)

= 34(100)

= 3400

WORD PROBLEMS INVOLVING FACTORIZATION

The figure below shows a circular metal washer. If the diameters of the washer and its hole are 3cm and 1cm respectively, find the area of the washer. Use the value 3.14 for .