Question

m^2+3m^2-18m, 23m-4m^2 and 5m^2 - 1
add this​

Answer 1

Answer:

$5m^{2} + 5m - 1$

Step-by-step explanation:

$m^{2} + 3m^{2} -4m^{2}+5m^{2} + 23m - 18m -1 \\5m^{2} + 5m - 1$