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If x=5 and y=2,then verify that (x+y)³=x³+y³+3xy(x+y) process subsitution |
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Answer» -798Step-by-step explanation:(x+y)³=x³+y³+3xy(x+y)=(5+2)^3 = 5^3+2^3+3*5*2(5+2)=343= 125+8+30 x 7=343=1,141=345-1141=-798 |
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