Question

PLEASE SOMEONE HELP MEE I REALLY NEED HELP!!!!!!!!
simplify (2a – 5)2



A.


42a – 7 + 16


B.


4a2 – 25


C.


4a2– 20a + 10


D.


4a2 – 20a + 25

Answer 1

\(\color{blue}{ (2a – 5)^2 }\)
use the following formula, \(\color{purple}{ (v – b)^2~=~v^2~-~2vb~+~b^2 }\)

your \(\color{purple}{ v }\) is "2a" AND
your \(\color{purple}{ b }\) is "5"

Answer 2

It is D 4a2 -20a +25

Answer 3

thank you both

Answer 4

your welcome :)

Answer 5

Yeah, you welcome \(\color{red}{ :D }\)