1) (-4x+2) (-4x-2) 2) (7x-3) (7x+3)
Matematika
HusnulAmaliaa
Pertanyaan
1) (-4x+2) (-4x-2)
2) (7x-3) (7x+3)
2) (7x-3) (7x+3)
1 Jawaban
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1. Jawaban Anakkecil1231
Rumusya depan×depan,(tengah×tengah+pinggir×pinggir),belakang×belakang
1. 16x²-8x+8x-4=16x²-4
2. 49x²-21x+21x-9=49x²-9