Answer: B
Step-by-step explanation:
When you factor an expression, you want to take out a factor of the numbers and variables.
Since this expression is a bit hard to factor as itself, we can FOIL the answers to see the correct expressions.
(4x-5)(4x-5)
16x²-20x-20x+25
16x²-40x+25
Answer:
b
Step-by-step explanation:
Using the trigonometric identities
cot x = and tan x = thus
+ tanΘ × cosΘ
= + × cosΘ
= cosΘ × + sinΘ
= sinΘ + sinΘ
= 2sinΘ → b
Answer:
18:23
Step-by-step explanation:
18:23 (cannot be simplified further as there is no common factor)