Special Products

• Formula of Square of Binomial when $\left(a+b\right)^2$.


  $a^2+$$2ab+$$b^2$
• Formula of Square of Binomial when $\left(a-b\right)^2$


  $a^2-2ab+$$b^2$
• Formula of Difference of Two Squares

  $\left(a+b\right)\left(a-b\right)=$$a^2-b^2$
• Formula for Cube of Binomial when $\left(a+b\right)^3$


  $a^3+$$3a^2b+$$3ab^2+$$b^3$
• Formula for cube of binomial when $\left(a-b\right)^3$


  $a^3-3a^2b+$$3ab^2-b^3$
• Formula for square of trinomial when $\left(a+b+c\right)^2$


  $a^2+$$b^2+$$c^2+$$2ab+$$2ac+$$2bc$