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4. Quadratic Equations
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Q33 of 82 Page 4

Solve for x: (CBSE 2013)

√2 x2 + 7x + 5√2 = 0

We use the quadratic formula to calculate the value of x


Putting the values in the equation we get



⇒



⇒


⇒


Answer: The two roots are -1.56 & 0.56

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31

Solve for x: (CBSE 2012,2013)

4√3 x2 + 5x - 2√3 = 0

32

For what value of k, are the roots of the quadratic equation kx (x – 2) + 6 = 0 equals? (CBSE 2013)

34

Solve for x: (CBSE 2014)

2x2 + ax – a2 = 0

35

Solve the following quadratic equation for x:

4x2 – 4ax + (a4 – b4) = 0 (CBSE 2015)

Questions · 82
4. Quadratic Equations
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