Question

como resolver? :c

(x+6)²

(3x-1)²

(9x-9)²

(2y-5)²

(8a-1)²

(4x+9)²

(y+1)²

(5x-9)²

Answer 1

(x+6)²
(x +6) .(x+6)
x² +6x +6x +36
x² +12x +36

(3x-1)²
(3x -1) .(3x -1)
9x² -3x -3x +1
9x² -6x +1

(9x-9)²
(9x -9) . (9x -9)
81x² -81x -81x +81
81x² - 162x +81

(2y-5)²
(2y -5) .(2y-5)
4y² -10y -10y +25
4y² -20y +25

(8a-1)²
(8a -1) . (8a-1)
64a² -8a -8a +1
64a² -16a +1

(4x+9)²
(4x +9) .(4x +9)
16x² +36x +36x +81
16x² +72x +81

(y+1)²
(y+1).(y+1)
y² +y +y +1
y² +2y +1

(5x-9)²
(5x -9) .(5x -9)
25x² -45x -45x +81
25x² -90x +81