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10. Using the graph of y=x2-3x- 10. What is the correct way to write the solution ofx2-3x-10 < 0? ?A. {x52}u**25)B. 2 |
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Answer» Given : y = x² - 3x - 10 To Find : solution of x² - 3x - 10 < 0 Solution: y = x² - 3x - 10 => y = x² - 5x + 2x - 10 => y = (x - 5)(x + 2) x² - 3x - 10 < 0 => (x - 5)(x + 2) < 0 x = 5 , -2 => y = 0 x > 5 => y = (+)(+) = + > 0 -2 < x < 5 => y = (-)(+) = - < 0 x < - 2 => y = (-)(-) = + >0 Hence x ∈ ( - 2 , 5 ) Learn More: Solve the given INEQUALITY for real x: [3x/5 + 4]/2 ≥ (x-6)/3 Write an inequality and show on a number line all NUMBERS: e from ... |
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