Question

PLS SOLVE THIS. i will mark as branliest!

Answer 1

Answer:

Answer is given in the attachment.

Step-by-step explanation:

$<marquee>Hope it helps you...Please mark this answer as the brainliest and follow me..</marquee>$

Answer 2

(4mn - 3m² + 7)(n + 2m) - (4m - 3n + 9)(m² - mn + 3)

= 4mn²-3m²n+7n+8m²n-6m³+14m - (4m³-3m²n+9m²-4m²n+3mn²+9mn+12m-9n+27)

= 4mn²-3m²n+7n+8m²n-6m³+14m - 4m³+3m²n-9m² +4m²n-3mn²-9mn-12m+9n-27)

= mn²+12m²n+16n-10m³+2m-9m²-9mn

= -10m³-9m²+12m²n+mn²-9mn+2m+16n

Hope it helps!!

Thank you ✌️