Question

D) 4m - 6n. 2n - 7m +12 and 4m - 4mn - 15​

Answer 1

Step-by-step explanation:

(4m-6n)(2n-7m)+(4 m-4 mn -15)

(8 mn-12n^2+28m^2+42nm)+(4m-4mn-15)

50mn-4mn-12n^2+28m^2-4m-15

46mn -4m -12n^2+28m^2-4m-15