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Mathematics 21 Online
OpenStudy (anonymous):

Solve this inequality algebraically: x²+4x≤12

OpenStudy (saifoo.khan):

x^2 + 4x - 12 ≤ 0 x^2 +6x -2x - 12 ≤ 0 x(x+6) -2(x+6) ≤0 (x+6)(x-2) ≤ 0

OpenStudy (saifoo.khan):

x ≤ -6 , x ≤ 2 therefore, -6 ≤ x ≤ 2

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