B, because 40 and 40 make 80 and 180-80=100<span />
Split the second term in 3m^2 + 5 - 8m into two terms
3m^2 - 3m - 5m + 5
Factor out the common terms in the first two terms, then in the last two terms.
3m(m - 1) - 5(m - 1)
Factor out the common term m - 1
<u>(m - 1)(3m - 5)</u>
Answer:
i believe it is b d c
Step-by-step explanation: