How do we expand ${(A + 2)}^{2}$ $(A+2)^2$ ?

Question

1288 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-10-16T07:23:14

${(A + 2)}^{2} = A^{2} + 4 A + 4$ $(A+2)^2=A^2+4A+4$

${(A + 2)}^{2}$ $(A+2)^2$

= $(A + 2) (A + 2)$ $(A+2)(A+2)$

= $A (A + 2) + 2 (A + 2)$ $A(A+2)+2(A+2)$

= $A \times A + A \times 2 + 2 \times A + 2 \times 2$ $A×A+A×2+2×A+2×2$

= $A^{2} + 2 A + 2 A + 4$ $A^2+2A+2A+4$

= $A^{2} + 4 A + 4$ $A^2+4A+4$

How do we expand (A+2)^2(A+2)2(A+2)^2?