Simplify the following expressions Be sure to write your sim

Simplify the following expressions. Be sure to write your simplified expression in descending order
(8x5)+(7x+6)
(6x3)(8x5)
9(7x+6)5
5x(7x+6)+(9x2+3x2)

Solution

We have (8x5)+(7x+6)(8x-5)+(7x+6) =(8x5)+(56x2+48x -35x -30)+(7x+6) = 56x2 +8x+48x-35x +7x -5-30+6 = 56x2 +28x -29. We have (6x3)(8x5)(-6x-3)-(8x-5) = (6x3)(-48x2+30x-24x+15)-(8x-5)= 48x2 -6x-30x+24x        -8x-3 -15+5 = 48x2 -20x-13 We have 9(7x+6)5x9(7x+6)-5x = 63x+54 – 35x10 – 30x9 -5x = – 35x10 – 30x9 + 58x +54 We have   5x(7x+6)+(9x2+3x2)= 35x2+30x -9x2 +3x -2 = 26x2 +33x -2