Use the quadratic formula to find the solutions for
y = -x2 - 5x + 12

Changes made to your input should not affect the solution:

(1): "x2"   was replaced by   "x^2".  

STEP

1

:

STEP

2

:

Pulling out like terms

2.1     Pull out like factors :

  -x2 - 5x + 12  =   -1 • (x2 + 5x - 12)  

Trying to factor by splitting the middle term

2.2     Factoring  x2 + 5x - 12  

The first term is,  x2  its coefficient is  1 .

The middle term is,  +5x  its coefficient is  5 .

The last term, "the constant", is  -12  

Step-1 : Multiply the coefficient of the first term by the constant   1 • -12 = -12  

Step-2 : Find two factors of  -12  whose sum equals the coefficient of the middle term, which is   5 .

     -12    +    1    =    -11  

     -6    +    2    =    -4  

     -4    +    3    =    -1  

     -3    +    4    =    1  

     -2    +    6    =    4  

     -1    +    12    =    11

Step-by-step explanation:

the answer would be a 24

step-by-step explanation:

c=2πr=2·π·3=24

it's possible to build a triangle with side lengths of 3, 3, and 9.- true ( b.)