Question

Resolva os produtos notáveis:

(a+b)² =

(2a+3)² =

(3x+4y) =

(a-b)² =

(2a-3)² =

(3x-4y) =

(2a+3) . (2a-3) =

(4x+3y) . (4x-3y) =

Answer 1

(a+b)²=
(a+b).(a+b)
a²+ab+ab+b²
a²+ab+b²

(2a+3)²=
(2a+3).(2a+3)
2a²+6a+6a+9
2a²+12a+9

(3x+4y)²=
(3x+4y).(3x+4y)
9x²+12xy+12xy+16y²
9x²+24xy+16y²

(a-b)²=
(a-b).(a-b)
a²-ab-ab+b²
a²+ab+b²

(2a-3)²=
(2a-3).(2a-3)
2a²-6a-6a+9
2a²+12a+9

(3x-4y)²=
(3x-4y).(3x-4y)
3x²-12xy-12xy+16y²
3x²+24xy+16y²

(2a+3).(2a-3)
4a²-6a+6a-9
4a²-12a-9

(4x+3y).(4x-3y)
16x²-12xy+12xy-9y²
16x²-24xy-9y²

Espero ter ajudado!