Question

> Directions for Q. No. 13 to 17 : A word arrangement
machine when given an input line of words, rearranges them,
following a particular rule in each step. The following is an
illustration of input and the steps of rearrangements:
Input : software scrips are red hot in bourses
Step I
: software in are red hot scrips bourses
Step II : red are in software bourses scrips hot
Step III : in are red hot scrips bourses software
Step IV : in bourses red hot scrips are software.
And so on.
As per the rule followed in the above steps, find out the
appropriate step for the given input or vice-versa in the
following questions:
13. Input : the Sudden need to alter policy stems​

Answer 1

Answer:

This implies that

x2+2ax=4x−4a−13

or

x2+2ax−4x+4a+13=0

or

x2+(2a−4)x+(4a+13)=0

Since the equation has just one solution instead of the usual two distinct solutions, then the two solutions must be same i.e. discriminant = 0.

Hence we get that

(2a−4)2=4⋅1⋅(4a+13)

or

4a2−16a+16=16a+52

or

4a2−32a−36=0

or

a2−8a−9=0

or

(a−9)(a+1)=0

So the values of a are −1 and 9.

hot

Answer 2

Answer:

The outer layer, known as the enamel, contains a component of calcium, which tends to be white in color. But, the whiteness of enamel is sometimes out of your control. Some people are born with whiter, thicker enamel and may simply be blessed with great looking teeth.