The discussion revolves around solving a system of equations involving two variables, specifically focusing on the equations p = -x² - 2x + 100 and p = 8x + 25. Participants are attempting to find the values of p and x.
Some participants have provided guidance on recognizing the quadratic nature of the equation and suggested various methods for solving it. There is acknowledgment of a miscalculation in the original attempt, which has led to further clarification and exploration of the problem.
There is a mention of a homework constraint, as participants are working within the context of a homework assignment. The original poster expresses frustration over a miswritten number in their calculations, which has contributed to confusion in their attempts.
GiTS said:Homework Statement
p=-x^2-2x+100 and p=8x+25, find p and x.
Homework Equations
The Attempt at a Solution
-x^2-2x+100=8x+125
-8x -8x
-100 -100
-x^2-10x=-75
x^2+10x=75
/10 /10
1/10x^2+x=75/10 i don't get how to get x alone on one side from here.
HallsofIvy said:Oh, c'mon! That's a quadratic equation. Factor if you can, or complete the square or use the quadratic formula. Oh, by the way, 125- 100= 25, not 75.