Question

(x²-a²).(x²+ax+a²)=

(2x+y).(2x-y)=

(3ab-1).(2ab+5)=

(X+7).(x-4)=
Eu preciso urgentemente pfvr me ajudem

Answer 1

Resposta:

$(x + 7) \times (x - 4) \\ = {x}^{2} - 4x + 7x + 28 \\ = {x}^{2} + 3x + 28$