Math, asked by Starlightmeh, 1 year ago

a + b=11 ab=28 a³+b³

Answers

Answered by Yogeeta2003
0
the correct answer is 407
Attachments:
Answered by Thatsomeone
2
(a+b)^2=a^2+b^2+2ab

121=a^2+b^2+56

a^2+b^2=121-56

=65

(a-b)^2=a^2+b^2-2ab

(a-b)^2=65-56

a-b=3

so a=7

b=4

a^3-b^3

=343+64

=407
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