Answer:
[tex]4x^2-20x+25[/tex]
Step-by-step explanation:
[tex](2x-5)^{2} \\(2x)^2+2(2x)(-5)+(-5)^2\\4x^2-20x+25[/tex]
Answer:
[tex]4x^2-20x+25[/tex]
Step-by-step explanation:
You can use the formula:
[tex](u+v)^2=u^2+2uv+v^2[/tex].
[tex](2x-5)^2=(2x)^2+2(2x)(-5)+(-5)^2[/tex]
[tex](2x-5)^2=4x^2-20x+25[/tex].
You could also use foil:
[tex](2x-5)^2=(2x-5)(2x-5)[/tex]
First: 2x(2x)=4x^2
Outer: 2x(-5)=-10x
Inner: -5(2x)=-10x
Last: -5(-5)=25
--------------------------Add.
[tex]4x^2-20x+25[/tex]
