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प्रश्न
Find the zeros of the polynomial function f(x) = 4x2 − 25
योग
उत्तर
Given f(x) = 4x2 – 25
To find the zeors of f(x), put f(x) = 0
∴ 4x2 – 25 = 0
⇒ 4x2 = 25
⇒ x2 = `25/4`
⇒ x = `+- sqrt(25/4)`
= `+- 5/2`
Hence the zeros of f(x) are `- 5/2, 5/2`
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