Question

4)sinplifique (B) (x+2).(x+3)+(-x+4).(x+5)-4x-3​

Answer 1

Explicação passo-a-passo:

(x+2).(x+3) + (- x +4).(x+5) -4x -3=

x²+3x+2x+6 + (- x² - 5x +4x +20) -4x-3=

x²+5x+6 - x² - 1x +20 -4x-3 =

5x+6-x+20-4x-3=

5x-x-4x+6+20-3=

4x -4x +26 - 3=

26 - 3=

23