0
It is a quadratic equation and the value of x is -7 or 6
x2 - 42 = (-x)
x2 + x - 42 = 0
(x + 7) (x - 6) = 0
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is x-squared minus 8x equals negative 15?
x=3
What is a solution of the equation 2x squared minus x equals 7?
x = 2.1374586088176875 x = -1.6374586088176875
What is negative sixty-four minus four squared?
Negative sixty-four minus four squared is equal to -80.
How do you use the intersect feature on a graphing calculator to find the solution of something like negative X squared plus 5 equals X cubed?
Draw the graph of negative X squared plus 5 minus X cubed and find the values of x where it intersects the x axis.
X squared plus 9 equals x squared minus 9?
x^2 +9 =x^2 -9 9=-9 No solution
What is x-squared minus 8x equals negative 15?
x=3
What is the solution set for the equation x squared minus 6x plus 9 equals 16?
{-1,7}
What is a solution of the equation 2x squared minus x equals 7?
x = 2.1374586088176875 x = -1.6374586088176875
What is negative sixty-four minus four squared?
Negative sixty-four minus four squared is equal to -80.
What are the terms of a quadratic equation?
x equals negative b plus or minus the square root of b squared minus 4bc over 2a
How do you use the intersect feature on a graphing calculator to find the solution of something like negative X squared plus 5 equals X cubed?
Draw the graph of negative X squared plus 5 minus X cubed and find the values of x where it intersects the x axis.
X squared plus 9 equals x squared minus 9?
x^2 +9 =x^2 -9 9=-9 No solution
If x squared minus y squared equals 10 and x plus y equals 5 what is x minus y?
2
What is the solution to x squared minus x minus 72?
xsquared minus x minus 72
Three squared minus 2 squared equals?
It is: 9-4 = 5
-12x minus 17 equals negative 89?
The answer to -12x minus 17 equals negative 89 is x equals 6.
What is seven minus a negative six equals?
Seven minus a negative six equals a positive one
