Question

(m+2)(m+1)-(3m+5)(9-5m)

Answer 1

(m+2)(m+1)-(3m+5)(9-5m)

$m {}^{2} + m1 + m {}^{2} +m 2 = 2m { \\ }^{2} + m1 + m2$

Answer 2

Answer:

16m²+m-43

Step-by-step explanation:

(m+2)(m+1)-(3m+5)(9-5m)

m(m+2) +1(m+2)- [3m(9-5m) 5(9-5m)]]

(m²+2m+m+2) - (27m-15m²+45-25m)

(m²+3m+2) - (-15m²+2m+45)

m²+3m+2+15m²-2m-45

16m²+m-43