Question 7: Choose the correct simplification of the expression (3x − 6)(2x2 − 4x − 5)
Answer:
7. 6x³ - 12x² + 12x + 15
Step-by-step explanation:
(3x-6)(2x² - 4x - 5)
3x • 2x² = 6x³
3x • -4x = -12x²
3x • -5 = -15
-6 • 2x² = -12x²
-6 • -4x = 24x
-6 • -5 = 30
combine terms
6x³ - 12x² - 15 - 12x² + 24x + 30
combine like terms
6x³ - 24x² + 24x + 15
hope this helps :)
in the future, only ask one question per brainly submission. thanks!
Answer:
d
Step-by-step explanation:
to find the surface area you have to add all the following numbers and double them
hope this helps
Note that 5x appears on both sides of this equation. Delete 5x from each side. This leaves us with 3x = 15/2. Dividing both sides by 3 results in x = 5/2 (ans)
<h2>
Answer:</h2>
<h2>
Step-by-step explanation:</h2>
Solving for 
is the same as isolating it. In this problem, we have the following equation:
So we need to do the following steps:
Step 1: Interchange the order of the equation:
Step 2: Divide the whole equation by 
:
Step 3: Simplify
Finally, this h is in term of b and is:
Answer:
20x^2 +19xy+3y^2
Step-by-step explanation:
See Image below :)
