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प्रश्न
Solve equation using factorisation method:
(2x – 3)2 = 49
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उत्तर
(2x – 3)2 = 49
Taking square root on both sides
2x – 3 = ± 7
When 2x – 3 = 7
⇒ 2x = 10
⇒ x = 5
And when 2x – 3 = –7
⇒ 2x = – 4
⇒ x = – 2
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