Question

how would you write

f(x)= (x+5)^2 + (x-9)^2
in standard form??

Answer 1

f(x)= (x+5)^2 + (x-9)^2
f(x)=x^2+10x+25+x^2-18x+81
f(x)=2x^2-8x+106

Answer 2

could you explain that middle part