Answer:
(2a-1)^2
Step-by-step explanation:
Rewrite 4a^2 as (2a)^2
.
(2a)^2−4a+1
Rewrite 1
as 12
.
(2a)^2−4a+1^2
Check the middle term by multiplying 2ab
and compare this result with the middle term in the original expression.
2ab=2⋅(2a)⋅−1
Simplify.
2ab=−4a
Factor using the perfect square trinomial rule a^2−2ab+b^2=(a−b)^2
, where a=2a and b=−1
.
(2a−1)2
please brainly
Answer:
Step-by-step explanation:
4a^2+4a+1
4a^2+2a+2a+1
2a(2a+1)+1(2a+1)
(2a+1)(2a+1)
