Math, asked by biplobboehring1200, 11 months ago

If a+b=7 and ab=15 then find a^3 + b^3. Please answer asap

Answers

Answered by rajupati

2

We have, a^3 + b^3= (a+b)^3 - 3ab(a+b)
=7^3 - 3 ×15×7 = 343 - 315=28

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