Question

obtain all the zeros of x power 4 + 2 x cube minus 7 x square - 8 x + 12 if two of it's zeros is 2 and minus 2

Answer 1

Given,
zeroes of the polynomial
$x {}^{4} + 2x {}^{3} - 7x {}^{2} - 8x + 12$
is 2 and -2.
so it's factors are (x-2)(x+2)
=
$x {}^{2} - 4$
Now,
divide the polynomial with the obtained factor
=

Hence,
All the zeroes of the polynomial are 2,-2,-3,-3.

Answer 2

zeroes are 2,-2, -3, 1

Step-by-step explanation:

here is your answer zeroes are 2,-2, -3, 1