Question

of p penamber ini
er the newing
2
Parallel
- Properties
Every thumbue in a quare
Angles in a linear pair are supplementary
the lines are parallel
boy
If all sides of a triangle
are congruent then it all angles are congruent.
were the mecedent and the consequent
A and AC 17.REG.then AB
PQR PO 3.4. OR) 57 then )
A member having only two divers called a prime number
te the event of each of the followtements
El them of measures of agies in a buncis 1, then the figure in a
the sum of measures of two angles in 90% then they are complement of
If the companding angles formed by a transversal of two lines are com
If the sum of the digits of a number is divisible by then the number is de
The diagonals of a parallelogram busest each other
Dwa labelled figure showing information in each of the following me
felpa artant thich af mahtangle
if the aludes drawn awesides of a triangle are congruent then the two
the following rement in conditional farm
Write the antecedent given part) and the consequent part to be prived) in the She​

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.