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x2 - x10 + x5 - x12 - x3
x12 = (x6)2 = (x2)6 = x2x2x2x2x2x2
x2 - 4x - 32 = (x - 8)(x + 4)
x2 + 4x - 32 = (x + 8)*(x - 4)
f(x) = x6 - 3x g(x) = x2 - 4 f(g(x)) = f(x2 - 4) = (x2 - 4)6 - 3(x2 - 4) = (x2 - 4)6 - 3x2 - 12 = (x12 - 24x10 + 240x8 - 1280x6 + 3840x4 - 6144x2 + 4096) - 3x2 - 12 = x12 - 24x10 + 240x8 - 1280x6 + 3840x4 - 6147x2 + 4084
x2+4x-32 = (x-4)(x+8) when factored
x2 + 12x + 32 = (x + 8)(x + 4)
34
x2 + 12x + 32 = (x + 4)(x + 8)
64. because every letter is replaced with the number of the position in the alphaeth, and then doubled. A=1 x2= B=2 x2= D=4 x2= H=8 x2= P=16 x2= 16 x2= 32 x2= 64
y varies inversely as x2 so y = c/x2 for some constant c. When x = 5, y = 4 So c = x2y = 100 that is y = 100/x2 Then, when x = 2, y = 100/4 = 25
x2 - 8x + 32 = 0 (assuming)you can factor or use the quadratic equation.I recommend the quadratic equation.