a+Ob-1=02(1)+ + 1-0bb3Hence, the required values are a 1 and b-3.TEST YOUR KNOWLEDGE 4.2T ANSWER TYPE PROBLEMSIs x =-3, a solution of the equation 2x2 + 5x + 3 = 0?Is --4, a solution of the equation 2x2+5x -12-0?Show that x =-3 is a solution of x2 + 6x + 9 = 0CBSE 2008[CBSE 2008]CBSE 2008]CBSE 2008)Showthat x =-2 is a solution of 3x2 + 13x + 14 = 0.Ifone root of the quadratic equation, 2x2 +kx -6 0 is 2, find the value of k.WER-I TYPE PROBLEMSmine if x = 3 is a root of the equation given below:242 -14x + 16.

a+Ob-1=02(1)+ + 1-0bb3Hence, the required values are a 1 and b-3.TEST

1.	a+Ob-1=02(1)+ + 1-0bb3Hence, the required values are a 1 and b-3.TEST YOUR KNOWLEDGE 4.2T ANSWER TYPE PROBLEMSIs x =-3, a solution of the equation 2x2 + 5x + 3 = 0?Is --4, a solution of the equation 2x2+5x -12-0?Show that x =-3 is a solution of x2 + 6x + 9 = 0CBSE 2008[CBSE 2008]CBSE 2008]CBSE 2008)Showthat x =-2 is a solution of 3x2 + 13x + 14 = 0.Ifone root of the quadratic equation, 2x2 +kx -6 0 is 2, find the value of k.WER-I TYPE PROBLEMSmine if x = 3 is a root of the equation given below:242 -14x + 16.
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