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The equation to the line touching both t...

The equation to the line touching both the parabolas `y^2 =4x` and `x^2=-32y` is

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`y^2 = 4x`
`a=1`
`x^2 = -32 y`
`= -4 xx 8 xxy`
`A= 8`
`x^2 = -32y`
`= -4 xx 8 xx y`
`1/m = 8m^2 `
...
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