From 243d50054e3fcc1b451982bcc0675d7984dbe438 Mon Sep 17 00:00:00 2001 From: James Su Date: Mon, 13 Jan 2020 15:09:18 +0000 Subject: [PATCH] Update Unit 2: Quadratic Equations 1.md --- .../Unit 2: Quadratic Equations 1.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Grade 10/Math/MPM2DZ/Math Oral Presentation Questions/Unit 2: Quadratic Equations 1.md b/Grade 10/Math/MPM2DZ/Math Oral Presentation Questions/Unit 2: Quadratic Equations 1.md index c652c9e..5438d20 100644 --- a/Grade 10/Math/MPM2DZ/Math Oral Presentation Questions/Unit 2: Quadratic Equations 1.md +++ b/Grade 10/Math/MPM2DZ/Math Oral Presentation Questions/Unit 2: Quadratic Equations 1.md @@ -33,11 +33,11 @@ $`b = \dfrac{-2 \pm \sqrt{4+4(168)}}{2}`$ $`b = \dfrac{-2 \pm 26}{2}`$ -$`b = -1 \pm 26 \implies b = 25, -27`$ +$`b = -1 \pm 13 \implies b = 12, -14`$ $`\because b \gt 0 `$ -$`\therefore b = 25cm`$ +$`\therefore b = 12cm`$ ### Question 2 a)