Solve for x : x⁴ – 173x²+ 676 = 0.
Answers
Answered by
4
Answer:
±13, ±2
Step-by-step explanation:
x⁴-173x²+676=0
x⁴-(169+4)x²+676=0
x⁴-169x²-4x²+676=0
x²(x²-169)-4(x²-169)=0
(x²-169)(x²-4)=0
now
x²=169 x²=4
x=±13 x=±2
Answered by
0
Answer:
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