Question

3x2-5x +6 value of x is (-1)​

Answer 1

Hello manjuscaria2007!

`\huge \boxed{\mathbb{QUESTION} \downarrow}`

3x² - 5x + 6 . Solve if value of x is (-1).

`\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}`

`3 {x}^(2) - 5x + 6`

Firstly, substitute the value of x as -1 in the equation. The equation becomes...

`3( - 1)^(2) - 5( - 1) + 6`

Now, solve it..

`3( - 1) ^(2) - 5( - 1) + 6 \\ = 3 * 1 - 5 * - 1 + 6 \\ = 3 + 5 + 6 \\ = 8 + 6 \\ = \large\boxed{\boxed{ 14}}`

Hope it'll help you!

ℓu¢αzz ッ

Answer 2

14 is the correct answer.

Explanation:

`\sf \: 3 {x}^(2) - 5x + 6 \\ \\ \sf \: Subtitute \: - 1 \: in \: the \: place \: of \: x \\ \\ \sf \: 3( - 1) ^(2) - 5( - 1) + 6 \\ \sf \:( 3 * 1) - ( 5 * - 1) + 6 \\ \sf \: 3 + 5 + 6 \\ = \large\boxed{ \mathfrak{14}}`

Hope it helps!

RainbowSalt2222