Which value must be added to the expression x2 – 3x to make it a perfect-square trinomial?3/29/469
Accepted Solution
A:
Answer:[tex]\frac{9}{4}[/tex]Step-by-step explanation:Givenx² - 3xTo make the expression a perfect squareadd ( half the coefficient of the x- term )²x² + 2( - [tex]\frac{3}{2}[/tex] )x + [tex]\frac{9}{4}[/tex], thusx² - 3x + [tex]\frac{9}{4}[/tex]= (x - [tex]\frac{3}{2}[/tex])² ← a perfect square