Answer:
13 x^2 -6x -9
Step-by-step explanation:
8x^2-4x-3+5x^2-2x-6
Combine like terms
8x^2+5x^2 -4x-2x -6-3
13 x^2 -6x -9
The answer is D. Think of the Pythagorean Theorem which states that a^2 + b^2 = c^2. The Pythagorean Identities used in trigonometry are the angle version which can be used to simplify expressions.
Answer:
1
Step-by-step explanation:
3/9 is equal to 1/3 so 1/3+2/3= 3/3 making it 1 whole
Answer:
x=7
Step-by-step explanation:
x+5=12
-5 -5
x=7