Question

if a-b=4;ab=45. find a³-b³​

Answer 1

Answer:

a^3-b^3=(a-b)(a^2+ab+b^2)

a^3-b^3=(a-b) (a^2-2ab+b^2+2ab+ab)

a^3 −b^3 =(a−b)[(a−b)^2+3ab]

a^3−b^3=4×(4^2+3×45)=4×(16+135)=4×151=604

Step-by-step explanation:

hope this helps