Question

qual as respostas: (3x+ 1)²=
(a³- 3c²)²=

(x 10+ 4) ²=

(5a-3)²

Answer 1

1)
$(3x) ^{2} + 2 \times 3x \times 1 + {1}^{2} \\ 9 {x}^{2} + 6x + 1$
$( { {a}^{3} )}^{2} - 2 \times {a}^{3} \times 3 {c}^{2} + {(3 {c}^{2}) }^{2} \\ {a}^{6} - 6 {a}^{3} {c}^{2} + 9 {c}^{4}$
( 10x +4)^2
$( {10x})^{2} + 2 \times 10x \times 4 + {4}^{2} \\ 100 {x}^{2} + 80x + 16$
(5a - 3)^2
$(5 {a})^{2} - 2 \times 5a \times 3 + 3 ^{2} \\ 25a ^{2} - 30a + 9$