Question

(v) -m2 + 5mn from 4m2 – 3mn +8
(vi) - x2 + 10x - 5 from 5x - 10​

Answer 1

Step-by-step explanation:

(v)

if the question is subtract

4m2 – 3mn +8-(-m2 + 5mn)

= 4m2 -3mn +8 +m2 - 5mn

=5m2-8mn+8

(vi)

5x - 10 - (-x2+10x-5)

=5x - 10 + x2- 10x + 5

=x2-5x-5