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How do you expand the binomial \displaystyle {\left ( {3} {x}- {1}\right)}^ { {4}} ? Using Pascal's triangle gives \displaystyle {81} {x}^ { {4}}- {108} {x}^ { {3}}+ {54} {x}^ { {2}}- {12} {x}+ {1} . …

Combine the like terms (4x and −2x): 4x−2x=2x. Combine constants (5 and 3; 5 + 3 = 8). Rewrite the simplified expression: 2x+8. The distributive property of multiplication helps you to remove …

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