Question

Subtract the following Polynomials.
1. 10x²y–5x²y=

2. -3x–(5x)–(-2x)=​

Answer 1

`1. \: \: 10 {x}^(2) y - 5 {x}^(2) y = 5 {x}^(2) y \\ 2. \: \: - 3 x - (5x) - ( - 2x) \\ \: \: - 3x - 5x + 2x = \\ \: \: - 8x + 2x = - 6x`

Hope this helps :)

Answer 2

(a)

• 10x²y–5x²y
• 5x²y

(b)

• -3x– (5x)– (-2x)
• -3x -5x +2x apply : [ ( - (-a) ) = +a ]
• -6x

add similar elements together; simplify.