Expand: (i)(ab-c)^2 (ii) (2x-3y)^2 (iii) (x+2y)^2

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Expand: (i)(ab-c)^2 (ii) (2x-3y)^2 (iii) (x+2y)^2 || Find The Squares of (i)(ab-c) (ii) (2x-3y) (iii) (x+2y) [S.Chand Class 9 ICSE Fundamentals of Mathematics Chapter 3 Exercise 3.1 Expansion and Factorisation Solution ]

(i) (ab-c)2

= (ab)2 -2(ab)c+c2

=a2b2 -2abc +c2 [Ans]

(ii) (2x-3y)2

= (2x)2 -2.(2x).(3y) +(3y)2

= 4x2 -12xy +9y2 [Ans]

(iii) (x+2y)2

= x2 +2.x. (2y) +(2y)2

=x2 +4xy +4y2 [Ans]

See More

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