Question

(1a+3) (1a-1)
(1a-3) (1a+1)
(x+5) (x-4)
(m-6) (m-5)
(-x+3) (-x+5)

AYUDA XFA ​

Answer 1

Respuestas:

(1a+3) (1a-1) = a² -a +3a -3 = a² +2a -3

(1a-3) (1a+1) = a² +a -3a -3 = a² -2a -3

(x+5) (x-4) = x² -4x +5x -20 = x² +x -20

(m-6) (m-5) = m² -5m -6m +30 = m² -11m +30

(-x+3) (-x+5) = x² -5x -3x +15 = x² -8x +15