ALGEBRA 2

 IDENTY-EQUATION

An identity is an equation which is always true, no matter what values are substituted. ... 2 x + 3 x = 5 x. is an identity because 2 x + 3 x will always equal regardless of the value of .

A quadratic expression (Latin quadratus ≡ ”squared”) is an expression involving a squared term

ax2 + bx + c

FACTORIZATION in algebraic expression

ax2 + bx + c  ====>>>>    (Px + n) (Qx + d)

-Expression With Middle term

x2 + 9x  ==>  x( x-9 )

-Expression With Costant

x2 + 9  ==>

let 9 = 32 

x2 + 32 = (x-3) (x-3) 

<<==different with 2square