Simple,
writing out the problem...

Simplify it...
-4x(6+5-1)
-4x(11-1)
-4x(10)
-40x
Making it look like...

Cancel out the common factors...
Thus making the answer:

.
Answer:
The answer is C) 4.5x + 40 < 6.5x + 20
Step-by-step explanation:
Answer: Brian should ask a price of £520 for the guitar.
Step-by-step explanation:
Given : Making cost of guitar= £325
Mark up percentage = 60%=0.60 [we divide percentage by 100 to convert into decimal]
Now , the price should be asked by Brian May for the guitar would be :
(Making cost of guitar) + 60% of (Making cost of guitar)
=(Making cost of guitar) + (0.60) x (Making cost of guitar)
= (Making cost of guitar) x (1+0.60) [By distributive property]
= (£325) x (1.60)
= £520
Hence, Brian should ask a price of £520 for the guitar.
Two solutions:
1. x =(100-√2160)/2=50-6√ 15 = 26.762
2. x =(100+√2160)/2=50+6√ 15 = 73.238
Answer:
Option A, E ,F are correct
Step-by-step explanation:
f(x).g(x)=(8x^2+4)(-x^2+12x+10)
=(-8x^4+96x^3+80x^2-4x^2+48x+40)
= -8x^4+96x^3+76x^2+48x+40
Leading term is -8x^4. The x term has coefficient 48. The x^2 term has coefficient +76