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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

Verify whether the following are zeros of the polynomial, indicated against them, or not p(x) = ax + b, x = -ba

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Question

Verify whether the following are zeros of the polynomial, indicated against them, or not

p(x) = ax + b, x = `(-"b")/"a"`

Sum
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Solution

p(x) = ax + b, x = `(-"b")/"a"`

`"p"((-"b")/"a") = "a"((-"b")/"a") + "b"`

= −b + b

= 0

∴ `(-"b")/"a"` is the zero of the polynomial.

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Chapter 3: Algebra - Exercise 3.2 [Page 91]

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Samacheer Kalvi Mathematics [English] Class 9 TN Board
Chapter 3 Algebra
Exercise 3.2 | Q 5. (iii) | Page 91

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