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Q: How do you solve 8x2 plus 16x plus 8 equals 0?

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8x2 + 16x + 8 = 8*(x2 + 2x + 1) = 8*(x + 1)2

24

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x=5

15 = 8x2 - 14x; whence, 8x2 - 14x - 15 = (2x - 5)(4x + 3) = 0. Therefore, x = 5/2 or -3/4.

16.

It is: 25-4(8*6) = -167

(4x + 3)(2x - 1) so x = -0.75 or 0.5

the roots are 1, - 1/3, - 3 1/2 and 3 1/2

You could try dividing both numerator and denominator by 8x2 .

8x2 + 2x - 1 = (4x - 1)(2x + 1).

8x2 + 6x - 9 = (2x + 3)*(4x - 3)

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