Answer:
Step-by-step explanation:
3b⁵ + 15b⁴ - 18b⁷ = 3b⁵ + [3*5*b⁴] - [6*3*b⁷]
=3b⁴*( b + 5 - 6b³)
Answer:
8-12a
Step-by-step explanation:
Answer:
<h3>

</h3>
Step-by-step explanation:
y= x²+6x-5
completing the square: <em> a²+2ab+b²</em> <em>= (a+b)²</em> where <em>a²=x² </em>(so <em>a=x</em>) and <em>2ab=6x </em> (so <em>b</em> would be 3):

Answer:
x = -3/2
Step-by-step explanation:
The correct answer is 12
Set up a ratio and then solve. See paper attached. (: