Which of these is the equivalent to x² + 14x + 13 = 0?
x=7±6 x=-14±6 x=-7± √183 x=-7±6

-13 + -1 = -14

-1 + -13 = -14

1 + 13 = 14

Step-by-step explanation:

Step-1 : Multiply the coefficient of the first term by the constant   1 • 13 = 13

Step-2 : Find two factors of  13  whose sum equals the coefficient of the middle term, which is   14 .

     -13    +    -1    =    -14

     -1    +    -13    =    -14

     1    +    13    =    14    That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  1  and  13

                    x2 + 1x + 13x + 13

Step-4 : Add up the first 2 terms, pulling out like factors :

                   x • (x+1)

             Add up the last 2 terms, pulling out common factors :

                   13 • (x+1)

Step-5 : Add up the four terms of step 4 :

                   (x+13)  •  (x+1)

            Which is the desired factorization

I hope this helps :D

step-by-step explanation: the answer for wha if rt is 10 centimeters long, and wha is st? it’s 6