Question

(2x+3)*(3x-2)-(5x+5)*(x+4)-x*(20-x)

Answer 1

2x+3+3x-2-5x-5+x+4-x+20-x
2x+3x-5x+x-x-x=3-2-5+20
-x=16

Answer 2

Let's simplify the given expression using the distributive property and combining like terms:

(2x+3)(3x-2)-(5x+5)(x+4)-x*(20-x)

= (2x3x + 2x(-2) + 33x - 32) - (5xx + 5x4 + 5x + 54) - (x20 - xx)

= (6x^2 - 4x + 9x - 6) - (5x^2 + 20x + 5x + 20) - (20x - x^2)

= 6x^2 - 4x + 9x - 6 - 5x^2 - 20x - 5x - 20 - 20x + x^2

= 6x^2 - 5x^2 + x^2 - 4x + 9x - 5x - 20x - 20 - 6

= 2x^2 - 20x - 26

Therefore, the simplified expression is 2x^2 - 20x - 26.