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
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Pertanyaan
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
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
1 Jawaban
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1. Jawaban ErvianaP
(x+3)(x+5) = x^2 + 5x + 3x + 15
(x-4)(x-2) = x^2 - 2x - 4x + 8
x^2 + 5x + 3x + 15 - (x^2 -2x - 4x + 8)
x^2 + 5x + 3x + 15 - x^2 + 2x + 4x -8 = 0 (B)