Manakah jawaban yang benar...? 1. (x+3) (x+5) - (x-4) (x-2) = 0 a.x^2 + 5x + 3x + 15 - x^2 - 2x - 4x + 8 = 0 atau b.x^2 + 5x + 3x + 15 - x^2 +2× + 4× - 8 = 0

[tex](x + 3)(x + 5) - (x - 4)(x - 2) = 0[/tex]
[tex]( {x}^{2} + 5x + 3x+ 15) - ( {x}^{2} - 2x - 4x + 8) = 0[/tex]
[tex] {x}^{2} + 5x + 3x + 15 - {x}^{2} + 2x + 4x - 8[/tex]

maka jawabannya B .
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