If one root of quadratic equation $x^{2} + 3 x - P = 0$ is $2$ , find the value of $P$ .

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Solution

If one root of the equation $x^{2} + 3 x - P$ is $2$ , then

$\Rightarrow (2)^{2} + 3 (2) - P = 0$

$\Rightarrow 4 + 6 - P = 0 \Rightarrow P = 10$

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If one root of quadratic equation x2+3x−P=0 is 2, find the value of P.

If one root of the equation x2+3x−P is 2, then⇒(2)2+3(2)−P=0⇒4+6−P=0⇒P=10

If one root of quadratic equation $x^{2} + 3 x - P = 0$ is $2$ , find the value of $P$ .

If one root of the equation $x^{2} + 3 x - P$ is $2$ , then

$\Rightarrow (2)^{2} + 3 (2) - P = 0$

$\Rightarrow 4 + 6 - P = 0 \Rightarrow P = 10$