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Sagot :
To evaluate [tex]\( h(-1) \)[/tex] given the function [tex]\( h(x) = 3x^2 - 4x + 1 \)[/tex], follow these steps:
1. Start by substituting [tex]\(-1\)[/tex] for [tex]\( x \)[/tex] in the function:
[tex]\[ h(-1) = 3(-1)^2 - 4(-1) + 1 \][/tex]
2. Calculate [tex]\((-1)^2\)[/tex]:
[tex]\[ (-1)^2 = 1 \][/tex]
3. Substitute this back into the equation:
[tex]\[ h(-1) = 3 \cdot 1 - 4(-1) + 1 \][/tex]
4. Multiply [tex]\(3\)[/tex] by [tex]\(1\)[/tex]:
[tex]\[ 3 \cdot 1 = 3 \][/tex]
5. Next, calculate [tex]\(-4 \cdot (-1)\)[/tex]:
[tex]\[ -4 \cdot (-1) = 4 \][/tex]
6. Substitute these results back into the equation:
[tex]\[ h(-1) = 3 + 4 + 1 \][/tex]
7. Finally, add the terms together:
[tex]\[ h(-1) = 3 + 4 + 1 = 8 \][/tex]
Therefore, the value of [tex]\( h(-1) \)[/tex] is:
[tex]\[ h(-1) = 8 \][/tex]
1. Start by substituting [tex]\(-1\)[/tex] for [tex]\( x \)[/tex] in the function:
[tex]\[ h(-1) = 3(-1)^2 - 4(-1) + 1 \][/tex]
2. Calculate [tex]\((-1)^2\)[/tex]:
[tex]\[ (-1)^2 = 1 \][/tex]
3. Substitute this back into the equation:
[tex]\[ h(-1) = 3 \cdot 1 - 4(-1) + 1 \][/tex]
4. Multiply [tex]\(3\)[/tex] by [tex]\(1\)[/tex]:
[tex]\[ 3 \cdot 1 = 3 \][/tex]
5. Next, calculate [tex]\(-4 \cdot (-1)\)[/tex]:
[tex]\[ -4 \cdot (-1) = 4 \][/tex]
6. Substitute these results back into the equation:
[tex]\[ h(-1) = 3 + 4 + 1 \][/tex]
7. Finally, add the terms together:
[tex]\[ h(-1) = 3 + 4 + 1 = 8 \][/tex]
Therefore, the value of [tex]\( h(-1) \)[/tex] is:
[tex]\[ h(-1) = 8 \][/tex]
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