Question

Fatore as expressões letra(a) (x-1)^2-9 letra(b) (x+8)^2-25 letra(c) (x-10)^2-49 Letra(d) (a+b)^2-c^2

Answer 1

Resposta:

(a) (x-1)^2-9  = (x -1 + 3). (x - 1 - 3) = (x + 2).(x - 4)

(b) (x+8)^2-25 = (x + 8 + 5).(x + 8 - 5) = (x + 13).(x + 3)

(c) (x-10)^2-49 = (x - 10 + 7). (x - 10 - 7) = ( x-3).(x - 17)

(d) (a+b)^2-c^2 = (a + b + c). (a + b - c)

Explicação passo-a-passo: