b) 4(x-3)2-(2x-5)2≥2
4(x^2-6x +9) - (4x^2 - 20x +25) ≥ 2
4x^2 -24x +36 - 4x^2 +20x.-25 ≥ 2
-4x ≥ 2-11
-4x ≥ -9 /:(-4)
x ≤ 9/4
x∈ (-∞ , 9/4 >
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
4(x^2-6x +9) - (4x^2 - 20x +25) ≥ 2
4x^2 -24x +36 - 4x^2 +20x.-25 ≥ 2
-4x ≥ 2-11
-4x ≥ -9 /:(-4)
x ≤ 9/4
x∈ (-∞ , 9/4 >