please copy main solve karke bhej do
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Step-by-step explanation:
4x ² - 56x + 196
= 4 ( x² -14x + 49 )
= 4 ( x² - 7x - 7x + 49 )
= 4 [ x ( x - 7) - 7 (x - 7 ) ]
= 4 [ x - 7 ]²
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