The zeroes of the quadratic polynomial f x - x 2-7 x -10 areA- -2-5B- -5-2C- -5-2D- 2-5

The correct option is C 5, 2For zeroes of polynomial, f(x) = 0 ⇒ nbsp;x^2+7x+10 = 0 ⇒ x^2+5x+2x+10 = 0 ⇒ (x+2)(x+5) = 0 ∴ x= 5, 2 Therefore, the zeroes ar ...

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Standard XIII

Mathematics

Quadratic Polynomial

The zeroes of...

Question

The zeroes of the quadratic polynomial $f (x) = x^{2} + 7 x + 10$ are

- 2, 5

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- 5, 2

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- 5, - 2

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2, 5

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Solution

The correct option is C $- 5, - 2$
For zeroes of polynomial,
$f (x) = 0 \Rightarrow x^{2} + 7 x + 10 = 0 \Rightarrow x^{2} + 5 x + 2 x + 10 = 0 \Rightarrow (x + 2) (x + 5) = 0 ∴ x = - 5, - 2$
Therefore, the zeroes are $- 5$ and $- 2.$

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Quadratic Polynomial

Standard XIII Mathematics

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The zeroes of the quadratic polynomial f(x)=x2+7x+10 are

The correct option is C −5,−2For zeroes of polynomial, f(x)=0⇒x2+7x+10=0⇒x2+5x+2x+10=0⇒(x+2)(x+5)=0∴x=−5,−2 Therefore, the zeroes are −5 and −2.

The zeroes of the quadratic polynomial $f (x) = x^{2} + 7 x + 10$ are

The correct option is C $- 5, - 2$
For zeroes of polynomial,
$f (x) = 0 \Rightarrow x^{2} + 7 x + 10 = 0 \Rightarrow x^{2} + 5 x + 2 x + 10 = 0 \Rightarrow (x + 2) (x + 5) = 0 ∴ x = - 5, - 2$
Therefore, the zeroes are $- 5$ and $- 2.$