Chapter 5: Problem 115
Explain the error. Factor: $$ 2 x^{2}-4 x-6=(2 x+2)(x-3) $$
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Chapter 5: Problem 115
Explain the error. Factor: $$ 2 x^{2}-4 x-6=(2 x+2)(x-3) $$
These are the key concepts you need to understand to accurately answer the question.
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Movie Stunts. The function that gives the distance a stunt woman is above the ground \(t\) seconds after she falls over the side of a 144 -foot tall building is \(h(t)=144-16 t^{2},\) Factor the right side. (GRAPH CANT COPY)
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Find the error in this proof that \(2=1\) $$ \begin{aligned} x^{2} &=x y \\ x^{2}-y^{2} &=x y-y^{2} \\ (x+y)(x-y) &=y(x-y) \\ (x+y)(x-y) &=y(x-y) \\ (x-y) &(x-y) \\ x+y &=y \\ y+y &=y \\ 2 y &=y \\ \frac{2 y}{y} &=\frac{y}{y} \\ 2 &=1 \end{aligned} $$
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