Question

a+b= 7
a^2+b^2=85
Find a^3+b^3
Pls can I get a quick and

Answer 1

Answer: (a+b)² = a²+b²+2ab

(7)² = 85 + 2ab

49-85/2 = ab

36/2 = ab

18 = ab

a³+b³ = (a+b)(a²-ab+b²)

= (7)(85-18)

= 7 × 67

=469

Answer 2

Hey ur answer is here in the attachment

Hope it hekped u

Mark as brainkiest plz....

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