Question

Find the value of k for which x^2+9kx+25=0 has no real roots

Answer 1

$<h4> REFER the attached picture. </h4>$

$<h3>ANSWER </h3>$

$<h4>k = 10/9 </h4>$

Answer 2

Answer:

Step-by-step explanation:

we know that for no real root

D<0

b2-4ac<0

(9k )2-4×25<0

81k2-100<0

81k2<100

k2<100/81

k<10/9