Answer:
3rd option
Step-by-step explanation:
(
)(x)
= 
=
← factorise numerator and denominator
=
← cancel (2x + 1) on numerator/ denominator
= 
Answer:
V=216cm³
Step-by-step explanation:
V=216cm³
1. 8b+40
2. -36n+16
3. -6y-3
4. 4k+32
5. 3n^2 (squared)
Find a common denominator...
1/5 = 7/35
7/35 = 7/35
6/25 = ... can't have 35 as a denominator. Not equivalent.