Tfboetrsonmegan Tfboetrsonmegan

15-06-2016
Mathematics

contestada

What are the real or imaginary solutions of the polynomials x4 -52x2 + 576 = 0
a. No Solution
b. -4,4,-6,6
c. -4, -6
d. 0,4,6

Respuesta :

15-06-2016

Hello,

Answer B

x^4-52x²+576=0
==>x^4-16x²-36x²+576=0
==>x²(x²-16)-36(x²-16)=0
==>(x²-16)(x²-36)=0
==>(x+4)(x-4)(x+6)(x-6)=0

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