4x + 5x - 2 + 3
9x + 1
(2x + 1) + (9x + 3)
11x + 4
(9x + 5) - (7x + 1)
2x + 4
2 (x + 4)
2x + 8
What is the coefficient.
-2x2 + 5x - 5x2 + 3x - 9 - 1
-7x2 + 8x -10
(3x2+5x-3) + (5x2-2x+1)
8x2 + 3x - 2
(2x2-4x+4) - (3x2-8x+6)
-x2 + 4x -2
2(-5x + 3)
-10x + 6
A polynomial with three terms is known as this.
What is a trinomial.
9 + 2y + 5x - 2y -10 +6y2
6y2 + 5x - 1
(-6x2-5x+4) + (-2x2-2x-6)
-8x2 - 7x -2
(x2+x-1) - (-x2-x-1)
2x2 + 2x + 2
2x2y3 (-3x2yz)
-6x4y4z
A term in a polynomial that includes only a number and not a variable is called this.
What is a constant.
-2x2 - 4x - y + x + x2 + 5y
- x2 - 3x + 4y
(x+x2-3) + (-x2-x+9)
6
(x+2x2-5) - (-5x2+x-9)
7x2 + 4
-7x( 3x2 + 5x +9)
-21x3 - 35x2 - 63x
Terms that have the same variables raised to the same exponents are called this.
What are like terms.
3x2y + 1 - y - 4x2y - 8y + 1
-x2y - 9y + 2
(7x2+5+4x) + (-x2-8x-5)
6x2 - 4x
(-x+5x2-2) - (5-2x+2x2)
3x2 +x - 7
-5x2y (-3x3y - y +7)
15x5y2 + 5x2y2 - 35x2y
When subtracting polynomials you need to remember to do this to the terms in the second bracket.
What is change their signs.