If roots of x² - 6x + 8 + 0 are increased by 1, new equation is?
- x² - 8x + 15 = 0
- x² - 5x + 6 + 0
- x² - 7x + 12 + 0
- None of these
Explanation
x² - 6x + 8 = 0 → (x - 2)(x - 4) = 0
Roots: 2 and 4
Increase each by 1: new roots are 3 and 5
New equation: (x - 3)(x - 5) = x² - 8x + 15 = 0
Last verified on 08-05-2026
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