Question

What is x please fast

`3 {x}^(2) - 5x + 4x = 3 {x}^(2) - 5 {x}^(2) + 9x`
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Answer 1

`\rm x = 2`

Explanation:

`\rm 3x ^ { 2 } -5x+4x=3x ^ { 2 } -5x ^ { 2 } +9x`

`\rm 3x^(2)-x=3x^(2)-5x^(2)+9x`

`\rm 3x^(2)-x=-2x^(2)+9x`

`\rm 3x^(2)-x+2x^(2)=9x`

`\rm 5x^(2)-x=9x`

`\rm 5x^(2)-x-9x=0`

`\rm 5x^(2)-10x=0`

`\rm 5x -10 =0`

`\rm x = 10 / 5`

`\bold{x = 2}`

Answer 2

`3 {x}^(2) - 5x + 4x = 3 {x}^(2) - 5 {x}^(2) + 9x \\ 3 {x}^(2) - x = - 2 {x}^(2) + 9x \\ 3 {x}^(2) + 2{x}^(2) = 9x + x \\5 {x}^(2) = 10x \\ 5x = 10 \\ x = (10)/(5) = 2 \\ x = 2 \\ thank \: you`