Question

(x+1)^2 + (x+2)^2

with the working

Answer 1

Answer:

2x^2+6x+5

Step-by-step explanation:

x^2+1+2x+x^2+4+4x

2x^2+6x+5

Answer 2

Answer:

$2x^2+6x+5$

Step-by-step explanation:

$(x+1)^2 + (x+2)^2$                                                        ∵$(a+b)^2=a^2+2ab+b^2$

$\\ (x+1)^2=x^2+2x+1\\(x+2)^2=x^2+4x+4$

adding both the equations:

$\\ x^{2} +2x+1+x^{2} +4x+4$

now adding the numbers with same variable we get

$2x^2+6x+5$