, यदि (४+४), बहुपद 2 + 2x +57 + 10 का एक �

1.	, यदि (४+४), बहुपद 2 + 2x +57 + 10 का एक गुणनपर हो, तो ।। का मान जाए।fo
Answer» Given,(x + a) is root of equation 2x^2 + 2ax + 5x + 10 Then,For x = - a equation should be equal to zero 2(-a)^2 + 2a(-a) + 5(-a) + 10= 0 2a^2 - 2a^2 - 5a + 10 = 0 5a = 10 a = 10/5 = 2 Therefore,Value of a = 2

, यदि (४+४), बहुपद 2 + 2x +57 + 10 का एक गुणनपर हो, तो ।। का मान जाए।fo

Answer»

Given,(x + a) is root of equation 2x^2 + 2ax + 5x + 10

Then,For x = - a equation should be equal to zero

2(-a)^2 + 2a*(-a) + 5*(-a) + 10= 0

2a^2 - 2a^2 - 5a + 10 = 0

5a = 10

a = 10/5 = 2

Therefore,Value of a = 2