IDNStudy.com, ang iyong platform ng sanggunian para sa pangkomunidad na mga sagot. Ang aming platform ay nagbibigay ng mga maaasahang sagot upang matulungan kang gumawa ng matalinong desisyon nang mabilis at madali.

what is the answer of (13r-a)square

Sagot :

[tex]Given\ situation; \\ \boxed{(13r-a)^{2}} \\ \\ Solution; \\ \\ \boxed{\boxed{Formula;\to(a)^{2}+2(a)(b)+(b)^{2}}} \\ \\ (13r)^{2}+2(13r)(-a)+(-a)^{2} \\ \\ 169r^{2}+26r(-a)+a^{2} \\ \\ \boxed{\boxed{169r^{2}-26ra+a^{2}}} \\ \\ Hope\ it\ Helps:) \\ Domini[/tex]
(13r-a)^2?
Just think of it that it is like this:
13-squared x r-squared  -a-squared
169  x r-squared  a-squared
=169r^2+a^2
Now, WHY DID -a-squared become positive a-squared?
Answer: Given -3-squared:
We all know that -3-squared is 9.
But, it is just the same with 3-squared and both of them yields 9.
So, simple, we just simplified it, done!