@acxbox22
Find the solution to the following equation by transforming it into a perfect square trinomial.

x2 – 12x = 13

A.

{46, 55}

B.

{–1, 13}

C.

{–15, 27}

D.

{–21, 33}

Question

@acxbox22 
Find the solution to the following equation by transforming it into a perfect square trinomial.

 

            x2 – 12x = 13

     

     

     

 
	
	
 
A.
	

{46, 55}

	
 
B.
	

{–1, 13}
	
 
C.
	

{–15, 27}
	
 
D.
	

{–21, 33}

acxbox22 · Answer

you dont have to transform it into a perfect square trinomial
subtract 13 on both sides
x^2-12x-13=0
factor
(x-13)(x+1)=0
x-13=0       x+1=0
x=13           x=-1
answer is B