Question

1. (x^2-7x+2)(3x^2+x-1)
2. (2a-5)^4
urgenteeee

Answer 1

1. 3x^4 + x^3 - x^2 - 21x^3 - 7x^2 + 7x + 6x^2 + 2x -2

= 3x^4 - 20x^3 - 2x^2 + 9x - 2

2. (4a^2 - 20a + 25) (4a^2 - 20a + 25)

= 16a^4 - 160a^3 + 600a^2 - 1000a + 625