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❀Quadratic Equations Activity-2

Quadratic Equations

Quadratic Equations Activity-2

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Activity No2 :Determine nature of roots of the quadratic equation.
    x2 + 2x - 9 = 0
Solution: Compare x2 + 2x - 9 = 0 with ax2 + bx + c = 0.
    ∴a = , b = 2, c = ,
∴ b2 - 4ac = 22 - 4 X X
           ∴ D = 4 +
           ∴ D = 40
     ∴ b2 - 4ac > 0.
∴ The roots of the equation are real and unequal.