Task 5.Use MATLAB to show that 7-4!2 101=1-90 -7 6 42 46 -3 12 L-47 134 Task 6.Use MATLAB to solve the following set of equations. x+y-3z-10 x-y+2z-3 2x+y-z=-6 Task Z.Use MATLAB to obtain the roots of x-15x +10x +24-0 Use the poly function to confirm your answer. Task 8 Usc MATLAB to confirm that (10x3-3x' + 5x-10)(4x2 + 12x-3) = 40x5 + 108x4-46x3 + 29x2-135x Task 9.Use MATLAB to confirm that 15x3 +5x -x + 6 16 3x-with a remainder of (1 67/5) x-345 = 5x2 +7x -4 Task 10 Use MATLAB to confirm that 2x' + 14x 5 18x3 +7x2 3x-9 -0.2672 when x=-2