Question

(x-3)(x+3)≥(4-1/2x)(1-2x)

Answer 1

(x-3)(x+3)≥(4-1/2x)(1-2x)
x²+3x-3x-9≥4-8x-1/2x+x²
x²+3x-3x+8x+1/2x-x²≥4+9
8,5x≥13
x≤1 9/17