RootX + Y =7
X+ Rooty =11
Value of X and Y
Answers
Answered by
1
☺HOLA☺
root x + y = 11.....Equation 1
root y + x = 7.....Equation 2
root y = 7 - x
Square both sides
y = x^2 -14x + 49.
root x + y = 11.
Substitute for y, x^2 -14x + 49
root x + x^2 -14x + 49 -11 = 0.
Re-arrange.
x^2 -14x + root x + 38 = 0
Let a = root x. Then
a^4 - 14 a^2 + a + 38 = 0
True when a = 2.
a = root x = 2
Substitute root x = 2 into equation 1 which is root x + y = 11 and get y = 9
Check out solution in equation 2.
Answer x = 4 and y = 9
HOPE IT HELPS UHH
#CHEERS
yadav1062:
Thanks Darling
Similar questions