Question

(5x + 1) (x) = (x+5) (x+3)

Answer 1

Step-by-step explanation:

$(5x + 1)(x) = (x + 5)(x + 3) \\ 5x {}^{2} + x = {x}^{2} + 3x + 5x + 15 \\ 5 {x}^{2} + x - {x}^{2} - 8x - 15 = 0 \\ 4 {x}^{2} - 7x - 15 = 0$

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