√(xy - 7x + 7y) = x
xy - 7x + 7y = x²
x² - xy + 7x - 7y = 0
x(x - y) + 7(x - y) = 0
(x + 7)(x - y) = 0
x + 7 = 0
x = -7
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
√(xy - 7x + 7y) = x
xy - 7x + 7y = x²
x² - xy + 7x - 7y = 0
x(x - y) + 7(x - y) = 0
(x + 7)(x - y) = 0
x + 7 = 0
x = -7