(x-3)(2x+1) = x(x+5)
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Step-by-step explanation:
- (x - 3) (2x + 1) = x (x + 5)
- x(2x + 1) - 3(2x + 1) = x² + 5x
- ( 2x² + 1x ) - ( 6x - 3 ) = x² + 5x
- 2x² + 1x - 6x + 3 = x² + 5x
- 2x² - x² = 5x - 1x + 6x - 3
- 1x² = 10x - 3
- 1x² - 10x + 3 = 0
x² - 10x + 3 = 0
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