Question

(4y-9z)²
Qual o resultado?

Answer 1

(4y - 9z)²

$\large \bf{(4y) {}^{2} } - 2 \times 4y \times 9z + (9z) {}^{2}$

$\large \bf{16y {}^{2} } - 2 \times 4y \times 9z + (9z) {}^{2}$

$\large \bf{16y {}^{2} } - 72yz + (9z) {}^{2}$

$\large \bf{ \orange{ \boxed{ \boxed{ \orange{\boxed{ \orange{ \large{16y {}^{2} - 72yz + 81z {}^{2} }}}}}}}}$