solve using quadratic equations x²-3x+1=0
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Answered by
2
Answer:
x² = -3x + 1 = 0·
Comparing equation by ax² + bx + c = 0
:. a = 1 b = -3 c = 1
5² - 4ac = (-3)² - 4x1x1.
= 9 - 4
=5
x = - b ± √b² - 4ac / 2a ----- Formula
:. x = -(-3) ± √5 / 2x1
:. x = 3 + √5 / 2 (or) x = 3 - √5 / 2
:. Roots of the given equation are 3+√5 / 2, 3-√5 / 2
Explanation:
Hope this helps you :)
Answered by
0
Explanation:
x²-3x+1=0
=>(x-1)²=x
=>x-1=√x
=>x=√x+1
=>√x=1
=>x=1
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