SOLUTION: Solve the following inequality. x2 - 49 ≤ 0 A. (-∞, -7] or [7, ∞) B. (-∞, -49] or [49, ∞) C. [-7, 7] D. [-49, 49]

Algebra ->  Inequalities -> SOLUTION: Solve the following inequality. x2 - 49 ≤ 0 A. (-∞, -7] or [7, ∞) B. (-∞, -49] or [49, ∞) C. [-7, 7] D. [-49, 49]       Log On


   

Question 444852: Solve the following inequality.
x2 - 49 ≤ 0
A. (-∞, -7] or [7, ∞)
B. (-∞, -49] or [49, ∞)
C. [-7, 7]
D. [-49, 49]


Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2+-+49+%3C=+0+
x%5E2+-+7%5E2+%3C=+0+
%28x+-+7%29%28x%2B7%29%3C=+0+
x+-+7%3C=+0+......=>...x%3C=+7
x+%2B+7%3C=+0+......=>...x%3C=+-7

C. [-7, 7]