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Lizzy
Mathematics
15 February, 09:45
What are all the solutions of x2 + 3x - 4 = 0?
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Lindsay Chambers
15 February, 09:52
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X^2 + 3x-4=0
(X+4) (x-1) = 0 so x = - 4 and x=1 are solutions
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Skye Hawkins
15 February, 10:15
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x² + 3x - 4 = 0 → (-4 = - 1 * 4 or - 2 * 2) → - 1 + 4 = 3 and - 2 + 2 = 0
(x - 1) (x + 4) = 0
x - 1 = 0 x + 4 = 0
+1 + 1 - 4 - 4
x = 1 x = - 4
Answer: 1, - 4
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