Question

Simplificando a expressao (4m +1)2 -(m+2)2 teremos:
15m2 + 5m -4
17m2 +5
15m2 + 4m -3
17m2 +4m-4
15m2-3

Answer 1

(4m+1)²-(m+2)²
16m²+8m+1-(m²+4m+4)
16m²+8m+1-m²-4m-4
15m²+4m-3

letra c