Question

(3-a)(3-a) = ?

Please Answer soon Am going to exam !!!!

Answer 1

(3-a)^2

=3^2+a^2-2*a*3

=9+a^2-6a

=a^2-6a+9

Hope this will help u....

Answer 2

Factorising:

Since both factors are the same, then we can put them as one using the square

(3 - a)(3 - a) = (3 - a)²

Expanding:

(3 - a)(3 - a) = 3(3- a) - a(3-a)

(3 - a)(3 - a) = 3(3) - 3a - 3a + a(a)

(3 - a)(3 - a) = 9 - 3a - 3a + a²

(3 - a)(3 - a) = 9 - 6a + a²