Exploring Algebraic Identities
Exercise 4.2
Factorisation
9 questions
Class 9 · Maths
NCERT
Q1 (i)
Factor completely:
\(9x^2 + 24xy + 16y^2\)
Q1 (ii)
Factor completely:
\(4s^2 + 20st + 25t^2\)
Q1 (iii)
Factor completely:
\(49x^2 + 28xy + 4y^2\)
Q1 (iv)
Factor completely:
\(64p^2 + \frac{32}{3}pq + \frac{4}{9}q^2\)
Q1 (v)
Factor completely:
\(3a^2 + 4ab + \frac{4}{3}b^2\)
Q1 (vi)
Factor completely:
\(\frac{9}{5}s^2 + 6sv + 5v^2\)
Q2 (i)
Find the values of the following using the identity
\((a-b)^2 = a^2 -2ab + b^2\)
\((79)^2\)
Q2 (ii)
Find the values of the following using the identity
\((a-b)^2 = a^2 -2ab + b^2\)
\((193)^2\)
Q2 (iii)
Find the values of the following using the identity
\((a-b)^2 = a^2 -2ab + b^2\)
\((299)^2\)