<em>The </em><em>Remainder Theorem</em><em> states that when you divide a polynomial by a linear factor , where is a constant, the remainder is evaluated at </em>
<em>Moreover, according to the </em><em>Factor Theorem</em><em>, an extension of the Remainder Theorem, if the remainder of the function is </em><em>0</em><em> when evaluated at , then is said to be a factor of the polynomial </em>
Given the 2 theorems above, it follows that if is a factor of , then the remainder is equal to 0 when is evaluated at
Replace ‘x’ with what ever number and then add 2, because if you make x a 1 then you would get a three. the equation goes from (x+2)=y to (1+2)=3 so make x whatever you want and then add 2 and you’ll get your ‘y’