Question

Factorise each of the following expression

1.a2-6ab+9b2

Answer 1

Answer:

heyy!! here is ur answer

Step-by-step explanation:a^2-6ab+9b^2

(a)^2- 2*a*3b+ (3b)^2

(a-b)^2

hope it will help u :) :)

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Answer 2

a^2-6ab+9b^2
=a^2-(3+3) ab+9b^2
=a^2-3ab-3ab+9b^2
=a(a-3b) -3b(a-3b)
=(a-3b)(a-3b)
=(a-3b)^2
Actually this expression is expension of (a-3b)^2