Diketahui a² - b² = 40 dan a - b = 4. Berapakah Nilai a + b?
Matematika
KarinaMochamadIkhsan
Pertanyaan
Diketahui a² - b² = 40 dan a - b = 4. Berapakah Nilai a + b?
2 Jawaban
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1. Jawaban Ferryi
a² - b² = 40
(a - b) (a + b) = 40
4 (a + b) = 40
a + b = 10 -
2. Jawaban yoesamudra
a² - b² = 40
(a + b)(a - b) = 40
(a + b) 4 = 40
a + b = 40/4
a + b = 10
moga membantu ^_^