Question

the zero value p(x) x2-3x-20 are​

Answer 1

Solution:-

=> x²-3x-20 = 0

=>Solving x²-3x-20 = 0 by the Quadratic Formula .

According to the Quadratic Formula, x , the solution for Ax²+Bx+C = 0 , where A, B and C are numbers, often called coefficients, is given by :

- B ± √ B²-4AC

x = ————————

2A

In our case, A = 1

B = -3

C = -20

Accordingly, B2 - 4AC =

9 - (-80) =

89

Applying the quadratic formula :

3 ± √ 89

x = —————

2

√ 89 , rounded to 4 decimal digits, is 9.4340

So now we are looking at:

x = ( 3 ± 9.434 ) / 2

Two real solutions:

x =(3+√89)/2= 6.217

or:

x =(3-√89)/2=-3.217

Two solutions were found :

x =(3-√89)/2=-3.217

x =(3+√89)/2= 6.217

i hope it helps you......

Answer 2

Answer:

the zero value p(x) x2-3x-20 are

Step-by-step explanation:

this your step