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Can you solve x2 plus 2x - 63 equals 0?
x2+2x-63 = 0 When factorised: (x-7)(x+9) = 0 Therefore: x = 7 or x = -9
What is the Factor x2 plus 2x 63?
x2+2x-63 = (x-7)(x+9) when factored
X squared minus two times x equals sixty-three?
x2 - 2x = 63 x2 - 2x - 63 = 0 Find two factors of -63 that add to -2 (including the sign). These are (-9,7) so, x2 - 9x + 7x - 63 = 0 x*(x-9) + 7*(x-9) = 0 (x-9)*(x+7) = 0 and so x - 9 or x = -7
What is the value of x when x squared - 2x is 63 showing your work in the form of an equation?
x2-2x = 63 x2-2x -63 = 0 => x = -7 or x = 9 So x must = 9 Check: 92-18 = 63
What does x multiplied by x equals?
x2
What does x equal in x2-8x equals 0?
x2-8x=0 ( add 8x to both sides) x2 =8x (divide by x) x=8 ( x2divided by x equals x)
What x what equals 63?
what x3 equals 63 is:21x3=63
X2 - x - 6 equals?
-4
If fx equals x2 then fx-1 equals?
3
If y equals -2 when x equals 4 find x when y equals 5?
x1:y1 = x2:y2 4:-2 = x2:5 x2 = (4*5)/-2 x2 = -10
What is x2-2x-63 factorised?
(x + 7)(x - 9)
What are the factors of x2 equals 81?
If: x2 = 81 Then: x = 9 or x = -9
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