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Expand the term (7x^2-4)^2 |
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Answer» HEY Friend☺ we KNOW that ( a - b )^2 = a^2 - 2ab + b^3 So ( 7x^2 - 4 )^2 = ( 7x^2)^2 - 2 ( 7x^2 )( 4 ) + ( 4 )^2 = 49x^4 - 56x^2 + 16 HOPE it HELPS you ..!! ✌ |
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