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PLS HELP ASAP! Ty

Let g(x)= 2x^2+3x-9 and h(x)=x^2+2x-6
Find (h-g)(2.1)

User Kmatheny
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1 Answer

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{\qquad\qquad\huge\underline{{\sf Answer}}}

Let's solve ~


\qquad \sf  \dashrightarrow \: (h - g)(x)


\qquad \sf  \dashrightarrow \: h(x) - g(x)


\qquad \sf  \dashrightarrow \: {x}^(2) + 2x - 6 - (2 {x}^(2) + 3x - 9)


\qquad \sf  \dashrightarrow \: {x}^(2) + 2x - 6 - 2 {x}^(2) - 3x + 9


\qquad \sf  \dashrightarrow \: {x}^(2) - 2 {x}^(2) + 2x - 3x - 6 + 9


\qquad \sf  \dashrightarrow \: - {x}^(2) - x + 3

For, (h - g)(2.1), put x = 2.1


\qquad \sf  \dashrightarrow \: - {(2.1)}^(2) - (2.1) + 3


\qquad \sf  \dashrightarrow \: - 4.41 - 2.1 + 3


\qquad \sf  \dashrightarrow \: - 6.51 + 3


\qquad \sf  \dashrightarrow \: - 3.51

User Matias Andina
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