Question

1. If p(x) = 3x + 4x² - 5x +8, find p(-2).​

Answer 1

Explanation:

`\small{\underline{\tt{\red{Given}}}}`

`\rightarrow` p(x) = -2

`\small{\underline{\tt{\green{solution}}}}`

`\rightarrow`
`p(x) = 3x + {4x }^(2) - 5x + 8`

`\rightarrow`
`p( - 2) = 3( - 2) + 4( { - 2}^(2) ) - 5( - 2) + 8`

`\rightarrow`
`p( - 2) = - 6 + 16 + 10 + 8`

`\rightarrow`
`p( - 2) = 10 + 18`

`\rightarrow`
`p( - 2) = 28`

`\small\boxed{p(-2) = 28 }`

Hope it helps