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1)125a^2+216b^3
Yes, use the formula (a-b)(a^2+ab+b^2).
The answer is (5a-6b)(25a^2+30ab+36b^2)
2) a^6-b^6
= (a^3)^2 - (b^3)^2
= (a^3 - b^3)(a^3 + b^3)
= ( a + b) (a^2 +b^2- ab) (a - b) ( a^2 + b^2 + ab)
= (a + b) (a - b) ((a^2 +b^2- ab) ( a^2 + b^2 + ab)
3)(2a+3b)^3 - (2a-3b)^3
answer in picture
this is your answer....
Yes, use the formula (a-b)(a^2+ab+b^2).
The answer is (5a-6b)(25a^2+30ab+36b^2)
2) a^6-b^6
= (a^3)^2 - (b^3)^2
= (a^3 - b^3)(a^3 + b^3)
= ( a + b) (a^2 +b^2- ab) (a - b) ( a^2 + b^2 + ab)
= (a + b) (a - b) ((a^2 +b^2- ab) ( a^2 + b^2 + ab)
3)(2a+3b)^3 - (2a-3b)^3
answer in picture
this is your answer....
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