Question

6. Find the roots of the quadratic equation x2 + 5x - (a + 1)(a + 6) = 0​

Answer 1

Answer:

formula for roots of quadratic  

expression ax2+bx+c=0 is 

=2a−b±b2−4ac

So for x2+5x−(a2+a−6)=

⇒2−5±25+4(a2+a−6)

⇒2−5±4a2+4a+1

⇒2−5±(a+1/2)2

=2−5±(a+1/2)