1.

A3 + b3 = 35 and ab = 6, then what is the value of a + b?

Answer»

Step-by-step EXPLANATION:

A3 + b3=35

a+b=?

(a+b)3=a3+b3+3ab(a+b)

(a+b)3=35+3×6(a+b)

(a+b)3=35+18(a+b)



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