Factorisation of polynomial
Exercise 3B
All question in one video
In this video questions are
Q.1 9x^2-16y^2
Solution:- Given 9x^2-16x^2
= (3x)²-(4y)²
= (3x+4y) (3x-4y)
Q.2 [(25/4)x^2-(1/9)y^2]
Solution:- [(25/4)x^2-(1/9)y^2]
= [(5/2)x]²-[(1/3)y]²
=[(5/2)x+(1/3)y] [(5/2)x-(1/3)y]
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