Question

Find the factors of 4a² – 20a + 25​

Answer 1

Answer:

$4 {a}^{2} - 20a + 25 = 4 {a }^{2} - 10a - 10a + 25$

=2a(2a-5)-5(2a-5)

=(2a-5)(2a-5)

Therefore 2a-5 is a factor of the given expression

Hope it helps you!!!!!!!

Answer 2

Answer:

( 2a - 5 )^2

Step-by-step explanation:

4a^2 - 20a + 25

Using the identity : ( a + b )^2

= a^2 - 2 × a × b + b^2

assume a = 4a^2 b = 25

(2a)^2 - 2 × 2a × 5 + (5)^2

= ( 2a -5 )^2