Kuis (easy (kalau mikir kritis))
a+b = 3, a-b = 1, a²-b² berapa?
a+b = 3, a-b = 1, a²-b² berapa?
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3
Penjelasan dengan langkah-langkah:
a + b = 3
a - b = 1
a²- b² = (a + b)(a - b)
= 3 x 1
= 3
Jawaban:
a = 2
b = 1
a+ b = 3
2+ 1 = 3
a-b = 1
2-1 = 1
a²-b² =?
2²-1² =?
4-1 = 3