+73 1. Write (3x² + 2xy + 7) - (6x² - 4xy + 3) in standard form.
2. What is the result when 3a² - 2a + 5 is subtracted from a² + a - 1 ?
3. What is the difference from x² - 3x -2 ?
4. Subtract 3x² + 4x - 1 from x² + 1 and write the result in standard form.
+73 opps sorry! 3. What is the difference when 2x² - x + 6 is subtracted from x² - 3x - 2 ?
+249 1. (3x² + 2xy + 7) - (6x² - 4xy + 3) --> remove parenthesis
3x^2 + 2xy + 7 - 6x^2 + 4xy - 3 --> combine like terms
6xy - 3x^2 + 4 --> rewrite in standard form of a quadratic (ax^2+bx+c)
-3x^2 + 6yx + 4
+249 2. (a² + a - 1) - (3a² - 2a + 5) --> remove parenthesis
a^2 + a - 1 - 3a^2 + 2a - 5 --> combine like terms
3a - 2a^2 - 6 --> rewrite into standard form for a quadratic (ax^2 + bx + c)
-2a^2 + 3a - 6
+249 I don't understand what you are asking for in question 3, so I'm going to skip it for now...
4.(x² + 1) - (3x² + 4x - 1) --> remove parenthesis
x^2 + 1 - 3x^2 - 4x + 1 --> combine like terms
-2x^2 - 4x + 2
+73 opps sorry! 3. What is the difference when 2x² - x + 6 is subtracted from x² - 3x - 2 ?
