Q14 of 65 Page 137

Let us factorise the following algebraic expressions:
x² – 2x – 22499

Given, x² – 2x – 22499

⇒ x² – 151x + 149x – 22499

⇒ x(x – 151) + 149(x – 151)

⇒ (x + 149)(x – 151)

Let us factorise the following algebraic expressions:

a² – 9b² + 4c² – 25d² – 4ac + 30bd

Let us factorise the following algebraic expressions:

3a² – b² – c² + 2ab – 2bc + 2ca

Let us factorise the following algebraic expressions:

(x² – y²) (a² – b²) + 4abxy

Let us factorize the following algebraic expressions:

t⁹ – 512

Questions · 65

8. Factorisation

1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 3 3 3 3 3

Let us factorise the following algebraic expressions:x2 – 2x – 22499