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abruzzese [7]
3 years ago
8

5C%20find%20%5C%3A%20the%20%5C%3A%20value%20%5C%3A%20of%20%5C%3A%20x" id="TexFormula1" title="4 {x}^{2} - 2x + x = 5 {x}^{2} + 2x \\ find \: the \: value \: of \: x" alt="4 {x}^{2} - 2x + x = 5 {x}^{2} + 2x \\ find \: the \: value \: of \: x" align="absmiddle" class="latex-formula">
fast please no wrong answer​
Mathematics
2 answers:
lbvjy [14]3 years ago
5 0

Answer:

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

tatuchka [14]3 years ago
4 0

Answer:

\rm x = -3

Step-by-step explanation:

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

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

\rm 4x^{2}-x-5x^{2}=2x

\rm -x^{2}-x=2x

\rm -x^{2}-x-2x=0

\rm -x^{2}-3x=0

\rm -x-3=0

\rm x = 3 \div (-1)

\bold{x = -3}

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