Like Terms
Are these like terms? 4a²b² , -9a²b²
Yes
Add the like terms. (2x² + 4) + (x² + 3)
3x² + 7
Change the signs of ALL of the terms being subtracted. Change the subtraction sign to addition. Follow the rules for adding signed numbers. (3x² - 4) - (x² + 3x - 2)
2x² -3x -2
what is combining like terms?
when you add or subtract terms that are alike
Add (2x² + x - 4) + (x² + 3x + 5)
3x² + 4x + 1
Arrange the like terms so that they are lined up under one another in vertical columns. Now, change signs of all terms being subtracted and follow rules for add. 2x² + 0x - 4 - (x²+ 3x - 3)
x² -3x - 1
The method of lining polynomials in vertical arrangement.
What is the vertical method?
Are these like terms? x² , x , 2ab
No
Add (2x² - 4) + (x² + 3x - 3)
3x² + 3x - 7
(2x² - 4) - (x² + 3x - 3)
x² - 3x - 1
What is the mistake? x² + 2x - 4x² + 3x = -3x² + 5x²
Do not add the exponents should be -3x² + 5x
(5x² - 6x +2) + (x² + 3x - 3)
6x² -3x - 1
2x² + 0x - 4 - (x²+ 3x - 3)
x² - 3x - 1
What are the terms that have the same variable and exponent called?
Like Terms
(-2x² - 7) + (-4x² + 3x +2)
-6x² + 3x - 5
3x² and 2x² of the polynomial (3x² - 1) - (2x² + 7x) are?
like terms