Using suitable identity, find the product : (x-7)(x-7)
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Answer:
x² - 14x + 49
Step-by-step explanation:
(a+b)² = a² - 2ab +b²
(x-7)(x-7)
= (x-7)²
= x² - 2.x.7 + 7²
= x² - 14x + 49
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