If: y = x -2 and 7y -4x = 10
Then: x = 8 and y = 6
"x2 = 100" is an equation which, if solved for x, will give you two possible value: 10 and -10.
x=5/2 or 2.5
x2 + x2 = 2x2
X2 + y2 = 100 = r2 r = 10
x2 + 10x = 0 x2 + 10x + 25 = 25 (x + 5)2 = 25 x + 5 = +-5 x1 = 0 x2 =10
"x2 = 100" is an equation which, if solved for x, will give you two possible value: 10 and -10.
The value of x2+7x+10 depends on the value of X. If x=1, then x2+7x+10 = 18 If x=2, then x2+7x+10 = 28 If x=3, then x2+7x+10 = 40 and so forth
x2-10 = 0 x2 = 10 x = the square root of 10
x2 = -11x - 10 x2 + 11x + 10 = 0 (x + 1)(x + 10) = 0
x2 = 11x - 10 ∴ x2 - 11x + 10 = 0 ∴ (x - 10)(x - 1) = 0 ∴ x ∈ {1, 10}
To solve for x: x2 = 11x - 10 x2 - 11x = -10 x2 - 11x + 10 =0 (x - 1)(x - 10) = 0 x = {1, 10)
if x2 = 5 the value of x has to be 5 divided by 2 which is 2.5 x = 2.5
x1:y1 = x2:y2 4:-2 = x2:5 x2 = (4*5)/-2 x2 = -10
If x = 8 then x2 = 82 = 8 x 8 = 64
We can't calculate what it equals until we know the value of ' x '.
x2 + 2y = 52 + 2*2 = 25 + 4 = 29
If you factor x2 - 3x - 10, you'll get (x-5) (x+2). If your equation is x2 - 3x -10 = 0, then x = 5, and x = -2.