Answer:
2x² + 23
Step-by-step explanation:
Distribute the -5 and combine like terms.
7x² + 3 - 5(x² - 4) =
= 7x² + 3 - 5x² + 20
= 2x² + 23
Answer:
The answer is "28, 35, 52, 65"
Step-by-step explanation:
Calculating the x,y:

When
or

So, the final answer is "28, 35, 52, 65".
29 mg = 0.029 g hope this helps
Answer:
x - 3 < -5 is the inequality x < -2 is the solution
Step-by-step explanation:
x - 3 < -5
add 3
x < -2