Question

Where is the result of combining the terms represented by the titles below?A. x^2+x-5B. x^2+2x+1C. x+1D. x+5

Answer 1

if we take the black boxes as representation of negative numbers, and the white boxes as a representation of positive numbers, then we get:

`-x^2+x-x-x+1+1+1+1-1+x^2-1-1+x+x`

after combining the similar terms we get:

`(-x^2+x^2)+(x-x-x+x+x)+(1+1+1+1-1-1-1)=x+1`

therefore, the final expression is x + 1