Question

Obtain all the zeroes of the polynomial x^4-17x²-36x-20.If two of its zeroes are +5 and -2 [Don't spam]

Answer 1

Answer:

-2, -1

Step-by-step explanation:

Refer the above attachment...

Answer 2

$2x^3 - x^ 2 - 4x + 2 = 0$

$x^2(2x - 1) - 2(2x - 1) = 0$

$(x^2 - 2)(2x - 1) = 0$

$x^2 - 2 = 0$

$x^2 = 2$

$x =+\sqrt 2$

$2x - 1 = 0$

$2x = 1$

$x = 1/2$

thus the roots are:

x = ± √2 , x = 1/2

hope it helps

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