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(a^2-b^2)^2 plz answer |
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Answer» a⁴ + b⁴ - 2a²b² Step-by-step EXPLANATION: ( a² - b² )² = [ ( a + B ) ( a - b ) ]² = [ ( a + b )² ] [ ( a - b )² ] = [ a² + b² + 2AB ] [ a² + b² - 2ab ] = a² [ a² + b² - 2ab ] + b² [ a² + b² - 2ab ] + 2ab [ a² + b² - 2ab ] = a⁴ + a²b² - 2a³b + a²b² + b⁴- 2ab³ + 2a³b + 2ab³ - 4a²b² = a⁴ + b⁴ + a²b² + a²b² - 4a²b² - 2a³b + 2a³b - 2ab² + 2ab² = a⁴ + b⁴ + 2a²b² - 4a²b² - 0 - 0 = a⁴ + b⁴ - 2a²b² |
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