2x^{2}-10=(x+3)^{2}+(x-2)(x+2)
2x^2 - 10 = x^2 + 6x + 9 + x^2 -2x
2x^2 - x^2 - 6x - x^2 + 2x = 19
-4x = 19 /:(-4)
x = -4 i 3/4
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
2x^2 - 10 = x^2 + 6x + 9 + x^2 -2x
2x^2 - x^2 - 6x - x^2 + 2x = 19
-4x = 19 /:(-4)
x = -4 i 3/4