Question

1.P(5P+2)
2.XY(X+Y+5)
3.(X+2) (X-3)
4.(2X - 1) ( X+2) ( X²-2X+1)

Answer 1

1. p(5p + 2)
=> 5p² + 2p
2. xy(x + y + 5)
=> x²y + xy² + 5xy
3. (x + 2)(x - 3)
=> x² - 3x + 2x - 6
=> x² - x - 6
4. (2x - 1)(x + 2)(x² - 2x + 1)
=> (2x² + 4x - x - 2)(x² - 2x + 1)
=> (2x² + 3x - 2)(x² - 2x + 1)
=> 2x⁴ - 4x³ + 2x² + 3x³ - 6x² + 3x - 2x² + 4x - 2
=> 2x⁴ - x³ - 6x² + 7x - 2