G(x)=x2-8x-20
solve using quadratic formula
help worth 10 points

x=-2,10

Step-by-step explanation:

You weren't very clear on what you wanted, and there are way easier ways to solve this but:

Quadratic formula is x = ( -b ± √( b^2 - 4ac ) ) / ( 2a ) where a=x^2 or 1, b=-8, and c=-20.

When you input these values into the equation and solve, you get x=20/2 and x=-4/2. When you solve both of these, you get x=-2 and x=10.

Please mark as brainliest ;)

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.