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[tex]4 {x}^{2} - 2x + x = 5 {x}^{2} + 2x \\ find \: the \: value \: of \: x[/tex]
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Sagot :

Answer:

[tex]4 {x}^{2} - 2x + x = 5 {x}^{2} + 2x \\ 4 {x}^{2} - x = 5 {x}^{2} + 2x \\ 4 {x}^{2} - 5 {x}^{2} = 2x + x \\ - 1 {x}^{2} = 3x \\ - x = 3 \\ x = - 3 \\ thank \: you[/tex]

Answer:

[tex] \rm x = -3 [/tex]

Step-by-step explanation:

[tex] \rm 4 {x}^{2} - 2x + x = 5 {x}^{2} + 2x [/tex]

[tex] \rm 4x^{2}-x=5x^{2}+2x [/tex]

[tex] \rm 4x^{2}-x-5x^{2}=2x [/tex]

[tex] \rm -x^{2}-x=2x [/tex]

[tex] \rm -x^{2}-x-2x=0 [/tex]

[tex] \rm -x^{2}-3x=0 [/tex]

[tex] \rm -x-3=0 [/tex]

[tex] \rm x = 3 \div (-1) [/tex]

[tex] \bold{x = -3} [/tex]