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

Question

asked Nov 20, 2017 212k views

1 Answer

Jondlm · Answer 1 · 2017-11-23T13:28:02+0000

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