Question

Calcule;

a) (X+7).(X+5)=

b) (2A+3B).(2A+3B)

c) (2X+3).(6x2-5X+7)

d) (Y-6).(2Y+4)

e) (10M+5P).(10M-5P)​

Answer 1

Resposta:

Explicação passo-a-passo:

a) (X+7).(X+5)= x^2 + 5x + 7X + 35 = x^2 + 12x + 35

b) (2A+3B).(2A+3B)  = 4A^2 + 6AB + 6AB + 9B^2 = 4A^2 + 12AB + 9B^2

c) (2X+3).(6x2-5X+7) = 12X^3 - 10X^2 + 14X + 18X^2 - 15X + 21 = 12X^3 + 8X^2 - X + 21

d) (Y-6).(2Y+4) = 2Y^3 + 4Y - 12Y - 24 =  2Y^3 - 8Y -24

e) (10M+5P).(10M-5P)​ = 100M^2  - 50PM + 50PM - 25P^2 =  100M^2  - 25P^2