Penjelasan dengan langkah-langkah:
(x+7)(x-7)
x²-7x+7x-49
x²-49
=> (x + 7)(x - 7)
=> x(x - 7) + 7(x - 7)
=> x² - 7x + 7x - 49
=> x² - 49
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Penjelasan dengan langkah-langkah:
(x+7)(x-7)
x²-7x+7x-49
x²-49
Penjelasan dengan langkah-langkah:
=> (x + 7)(x - 7)
=> x(x - 7) + 7(x - 7)
=> x² - 7x + 7x - 49
=> x² - 49