Question

If one zero of the quadratic polynomial x²-5x-6 is 6, then find the other zero​

Answer 1

Answer:

x=5/2+1/2√73 or x=5/2+−1/2√73

Step-by-step explanation:

x2−5x−6=6

Step 1: Subtract 6 from both sides.

x2−5x−6−6=6−6

x2−5x−12=0

For this equation: a=1, b=-5, c=-12

1x2+−5x+−12=0

Step 2: Use quadratic formula with a=1, b=-5, c=-12.

x=−b±√b2−4ac/2a

x=−(−5)±√(−5)2−4(1)(−12)/2(1)

x=5±√73/2

x=5/2+1/2√73 or x=5/2+−1/2√73

Answer:

x=5/2+1/2√73 or x=5/2+−1/2√73