Question

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



PLEASE ANSWER FAST

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Answer 1

Answer:

3(a+b)²-2(a-b)²

3x(a)²+2(a)(b)+(b)²-2(a)²-2(a)(b)+(b)²

3a²+2ab+b²-2a²-2ab+b²

3a²-2a²+2ab-2ab+b²+b²

0+0+2b²

2b²

Answer 2

Answer:

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

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

= 3a^2+3b^2+6abv-2a^2-2b^2+4ab

= a^2+b^2+10ab