I was asked to solve the following equation using any method. This is #81 of 1.4. The answer in the book is -2 plus/minus the square root of two. The question I have is why am I not able to do the following. I moved -2 to the left side of the equation to set it = to 0. The equation is now a perfect square trinomial = 0. If I use the square root property, m + 2 = 0. By subtracting 2 from both sides I am left with m = 2. Please refer to attached photo.
I was asked to solve the following equation using any method. This is #81 of 1.4. The answer in the book is -2 plus/minus the square root of two. The question I have is why am I not able to do the following. I moved -2 to the left side of the equation to set it = to 0. The equation is now a perfect square trinomial = 0. If I use the square root property, m + 2 = 0. By subtracting 2 from both sides I am left with m = 2. Please refer to attached photo.
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter4: Polynomials
Section4.3: Multiplying Monomials
Problem 2WE
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I was asked to solve the following equation using any method. This is #81 of 1.4. The answer in the book is -2 plus/minus the square root of two. The question I have is why am I not able to do the following. I moved -2 to the left side of the equation to set it = to 0. The equation is now a perfect square trinomial = 0. If I use the square root property, m + 2 = 0. By subtracting 2 from both sides I am left with m = 2. Please refer to attached photo.
Transcribed Image Text:m² + 4m = -2
Transcribed Image Text:(81)
m²+4= -2
m²+²m +2 = 0
2
[(mta) ² =) 0
тна
M+2=0-2
m = -2
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