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secondary 3 | E Maths
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Need help with part (d). I keep on getting different answers?
Date Posted: 1 year ago
Views: 341
x² - x-6 = (x-3)∙(x+2)
7 = x(x-3)
x² - 3x = 7
(x - 1.5)² = 7+1.5² = 9.25 ≈ 3.04138²
x₁ = 1.5+3.04138 ≈ 4.54
x ₂= 1.5-3.04138 ≈ -1.54
7 = x(x-3)
x² - 3x = 7
(x - 1.5)² = 7+1.5² = 9.25 ≈ 3.04138²
x₁ = 1.5+3.04138 ≈ 4.54
x ₂= 1.5-3.04138 ≈ -1.54
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Quadratic formula
Date Posted:
1 year ago
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