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40 votes

5 {x}^(2) - 2x + 3x = 9 {x}^(2) + 9x
please fast please fast​

User Markau
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2 Answers

27 votes
27 votes

Answer:

x = -2

simplify:

-4x^2 - 8x = 0

User Lexpj
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3.1k points
19 votes
19 votes

Answer:


5 {x}^(2) - 2x + 3x = 9 {x}^(2) + 9x \\ 5 {x}^(2) + x = 9 {x}^(2) + 9x \\ 5 {x}^(2) - 9 {x}^(2) = 9x - x \\ - 4 {x}^(2) = 8x \\ - 4x = 8 \\ x = ( - 8)/(4) = - 2 \\ x = - 2 \\ thank \: you

User Markus Hayner
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2.9k points