Question

53..The least integer value of k for
which the equation
|x – 21 – 4|x – 21+3=k has four
solution





if u do it correct i will mark u as brainlist​

Answer 1

Step-by-step explanation:

Given quadratic equation is x

2

−2(k+2)x+12+k

2

=0

For two different real roots, D>0

⇒b

2

−4ac>0

⇒(2(k+2))

2

−4×1×(12+k

2

)>0

⇒4(k

2

+4+4k)−48−4k

2

>0

⇒4k

2

+16+16k−48−4k

2

>0

⇒16k−32>0

⇒k>2

Hence, the least integral value of k is 3.

Answer 2

Step-by-step explanation:

Confused questions