If 4x²-12x+9=0 has equal roots, then the roots are?
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Answer:
4x²-12x+9 = 0
→ (2x)²-2×2x×3+ (-3)² = 0
→ (2x - 3)² = 0
→ x = 3/2 , 3/2 are the two equal roots.
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