173. Which of the following describes all values of x for
which 1 – x2 ≥ 0 ?
(A) x ≥ 1
(B) x ≤ –1
(C) 0 ≤ x ≤ 1
(D) x ≤ –1 or x ≥ 1
(E) –1 ≤ x ≤ 1
I got (1-x) ( 1+x) ≥ 0
what next ?
dint quite understand the explanation in OG
which 1 – x2 ≥ 0 ?
(A) x ≥ 1
(B) x ≤ –1
(C) 0 ≤ x ≤ 1
(D) x ≤ –1 or x ≥ 1
(E) –1 ≤ x ≤ 1
I got (1-x) ( 1+x) ≥ 0
what next ?
dint quite understand the explanation in OG













