Question

7- Calcule:

a) (3x² + 2y³ )²​

Answer 1

Oie, Td Bom?!

$= (3x {}^{2} + 2y {}^{3} ) {}^{2}$

$= (3x {}^{2} ) {}^{2} + 2 \: . \: 3x {}^{2} \: . \: 2y {}^{3} + (2y {}^{3} ) {}^{2}$

$= 9x {}^{4} + 12x {}^{2} y {}^{3} + 4y {}^{6}$

Att. Makaveli1996