that depends on what that expression is equal to.
If you are asking what x equals if "-x-2 = 0" for example, then the solution would be:
-x-2 = 0
-x = 2 add 2 to both sides
x = -2 multiply both sides by negative 1 - solved
If, however, -x-2 does NOT equal zero, then this solution is incorrect.
-x - 2 equal to zero, because you found that the value of x is a negative number, x = -2, and the opposite of x is a positive number, -x = -(-2) = 2. Thus -x - 2 = -(-2) - 2 = 2 - 2 = 0
If this is not a maths question, then SE made it X-2 instead of XI because X-2 was a continuation of X, instead a new universe like they usually have when they change the Roman numeral.
0
x2 = 8xx2- 8x = 0x(x - 8) = 0x = 0 ;x - 8 = 0x = 8
It is: (-4)^2 +(-4) -9 = 3 when x is equal to -4
11
x2 - 7x = 8 x2 - 7x - 8 = 0Now find two numbers that multiply to equal -8, and add to equal -7.(1) * (-8) = -8(1) + (-8) = -7(x+1)(x-8) = 0 This is the factored form of x2 - 7x = 8You can then solve the equation if necessary, and get:x = -1 or x = +8
0
x2 + x2 = 2x2 2x^2
x - 0.4x = 0.6x
x2 + x2 = 48 2x2 = 48 x2 = 24 x = √24 x = 2√6
Only if x is equal to 2.
x = x, y=y, x2=x2
x2, or "x squared"
x+x=2x
(12x6)x2 = 12x8
x2-8x=0 ( add 8x to both sides) x2 =8x (divide by x) x=8 ( x2divided by x equals x)
x2-5x = 0 x(x-5) = 0 x = 0 or x = 5
x2+xx = 15 Which is the same as: x2+x2 =15 2x2 = 15 x2 = 7.5 x = the square root of 7.5