0
Because you are multiplying a negative & A negative. You can fully understand by closing eyes & reopening them. + will mean positive & - will mean negative. ++: Keep your eyes open, then keep your eyes open again. The eyes will be open. So ++=+. +-: Keep your eyes open, then close your eyes. Your eyes will be closed, so +-=-. --: close your eyes, open your eyes. Your eyes will be open so --=+. Think of -2 * -2 as 2 * 2. You know 22=4. So -2-2=4.
What else can I help you with?
What is 2x to the power of 6 minus 128?
2(x + 2)(x - 2)(x2 + 2x + 4)(x2 - 2x + 4)
How do you find a constant k such that x minus 2 is a factor of x4 minus 5x3 plus kx2 plus 3x minus 10?
k = 7 x^4 - 5x^3 + 7x^2 + 3x - 10 = (x + 1)(x - 2)(x^2 - 4x + 5)
What times what equal 4?
2 x 2 = 4 8 x 0.5 = 4
What times what minus what would equal to 13?
To solve the equation "x times y minus z equals 13," we need to set up the equation as follows: xy - z = 13. Since we are looking for three unknowns, there are multiple solutions to this equation. One possible solution could be x = 5, y = 3, and z = 2, as 5 times 3 minus 2 equals 13.
What are the factors of 5x2 - 5x minus 100?
(x - 4)(x + 9)
The equation of the axis of the parabola x minus 3 power 2 is equal to 2 y plus 4 is Answer is x minus 3 is equal to 0?
Yes, it is.
What does -2 to the power of 2 equal?
4 -22= -2 x -2 double minus there =4
What is the solution to x squared minus 6x plus 8 equal zero?
(x-2)(x-4) = 0 x = 2 or x = 4
What does 2x2 minus x2 equal?
2x2=4 X -2=-8
What is 5 divided by x minus 1 plus 2 equal 4 divided by x minus 1?
Why would you ask that? Stuck on your maths homework? x=1/2
What is -x minus 5 equal -2?
If: -x-5 = -2 then x = -3
What does x minus six equal to negative eight equal?
If: x-6 = -8 then x = -2
How do you factor the expression x squared minus 4 divided by x cubed minus 8?
-4
4x minus 9x greater than of equal to -12 minus 8?
X is less than or equal to 4.
What is minus x when x is minus?
it is equal to +x
What is the constant in this expression 3 x squared minus 2 x y minus 4?
4
How do you factor x squared minus 2x minus 8?
(x + 2)(x - 4)
