Q20 of 113 Page 61

Write the zeros of the quadratic polynomial f(x) = 4√3x2 + 5x ‒ 2√3.

We know that,

To find the zeros of the quadratic polynomial we have to equate the f (x) to 0


∴ f (x) = 0


4√3 x2 + 5x - 2√3 = 0


4√3 x2 + 8x – 3x - 2√3 = 0


4x (√3 x + 2) - √3 (√3 x + 2) = 0


(√3 x + 2) = 0 or (4x - √3) = 0


x =- or x =


Hence, the zeros of the quadratic polynomial f (x) are - or


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