Math, asked by john333, 11 months ago

The sum of all real values of x satisfying the eqn (x2- 5x+5) whole power x2+4x-60 = 1

Answers

Answered by 2002pratham110pcujcs

then x2 +4x-60 may be 0 is one case..
from solving quadratic equation ..,
we get x=6 or x=-10

then
case 2 is that
x2-5x+5=1
from solving quadratic equation ..,
x=1 or x=4

sum=4+1+6+(-10)
1 is answer

john333: but the answer in material is 5

john333: how

john333: plz do the answer i to tried the same and even one more roots are x=2 and x= 3 .... ....three not satisfies ............them. i get sum 3. again need +2. to make 5 ...

john333: answer is 5............i want one more condition

Answered by snknaveen

Answer:

x=3

Step-by-step explanation:

Either x2 – 5x + 5 = 1 or x2 + 4x – 60 = 0

⇒ x = 1, 4 or x = –10, 6

Also x2 – 5x + 5 = –1 and x2 + 4x – 60 is an even number

⇒ x = 2, 3

For x = 3, x2 + 4x – 60 is odd so we can neglect it..

Total solutions are x = 1, 4, –10, 6, 2

Adding 1+4-10+6+2

⇒ Sum = 3

Previous Question

Next Question