Answer:
-x² - 9 is your simplified form
Step-by-step explanation:
Combine terms with the same amount of variables.
(2x² - 5) - (3x² + 4)
First, distribute the negative sign to all terms within the second parenthesis
(2x² - 5) - 3x² - 4
Combine like terms
2x² - 3x² = -x²
-5 - 4 = -9
-x² - 9 is your simplified form
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Answer: 3 hours and 15 minutes
Step-by-step explanation:
Answer:
x = 30
Step-by-step explanation:
a) The sum of the angles along the line is 180°. That means ...
2x° +90° +x° = 180°
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b) Subtracting 90° and dividing by 3° gives ...
3x° = 90°
x = 30
Answer:
No
Step-by-step explanation:
Because no
4x+5y=-35 will be that in standard form
