Commutative property of addition:
a + b = b + a
Associative property of addition:
a + (b + c) = (a + b) + c
Opposite of a sum:
- a - b = - (a + b)
If we look at the options, A and D follow associative property.
B follows commutative property.
C follows opposite of a sum property.
When dividing fractions you need to multiply the first fraction by the reciprocal of the second. You have done the opposite and multiplied the reciprocal of the first fraction by the second.
Answer:
117 units
Step-by-step explanation:
<span>(2n^2 + 5n + 3)(4n - 5)
8n^3-10n^2+20n^2-25n+12n-15=
<u>8n^3+10n^2-13n-15</u>
It's A</span>
