4-xP2=6 find x
P=permutation
Answers
Answered by
5
(4-x)!/(4-x-2)! = 6
(4-x) × (4-x-1) × (4-x-2)! / (4-x-2)! = 6
(4-x) × (3-x) = 6
12 - 4x-3x +x^2 = 6
x^2 - 7x +6 = 0
x^2 -1x -6x +6 =0
x(x-1) -6(x-1) = 0
(x-6)(x-1) = 0
x= 6 & 1
hope it helped,
plzzz mark as brainliest........
(4-x) × (4-x-1) × (4-x-2)! / (4-x-2)! = 6
(4-x) × (3-x) = 6
12 - 4x-3x +x^2 = 6
x^2 - 7x +6 = 0
x^2 -1x -6x +6 =0
x(x-1) -6(x-1) = 0
(x-6)(x-1) = 0
x= 6 & 1
hope it helped,
plzzz mark as brainliest........
chitrak:
thank u so much
plzz mark as brainliest....
how to mark it
i am new user
in the book the answer is 3
sorry, but mine calculations are correct........
o then mine are correct too
must be printing mistakes in the book...!!!!!
the option will come in notification to mark the brainliest answer. plzzz mark mine only.....
Similar questions