As when u sq rt 9, u will get + , - 3.
will the inequality sign change for -3? eg. x > -3 ? and x < 3
will the inequality sign change for -3? eg. x > -3 ? and x < 3
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x^2 < 9
(x - 3)(x + 3) < 0
x < 3
x > -3
-3 < x < 3
(x - 3)(x + 3) < 0
x < 3
x > -3
-3 < x < 3
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You get the square root of 9, which canceled out the ^2.
Therefore your answer is x < +3 and x> -3
Therefore your answer is x < +3 and x> -3
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x^2 < 9
-3
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-
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-3
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find x values such that x² < 9
So, for all values between x<3 and x>-3
Answer
So, for all values between x<3 and x>-3
Answer
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x^2<9
x<3, x>-3
x<3, x>-3
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okay so x has to be less than 9
1
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