Simplyfy:
`(3x^(2) + 5x - 7)(x -1)- (x^(2) - 2x +3)(x + 4)`

((5x^(2) + 6x+ 7))/((2x^(2) + 3x +4))

Simplify: (x^(2)-3x+2)(5x-2)-(3x^(2)+4x-5)(2x-1)

collect the like terms and simplify: 5x^(2) - 2x + 7 - 9 + 7x - 3x^(2) + 4x^(2) - x - 1

Simplify: x^(2)-3x+5-(1)/(2)(3x^(2)-5x+7)

Simplify : (i) (5x - 9y) - (-7x + y) (ii) (x^(2) -x) -(1)/(2)(x - 3 + 3x^(2)) (iii) [7 - 2x + 5y - (x -y)]-(5x + 3y -7) (iv) ((1)/(3)y^(2) - (4)/(7)y + 5) - ((2)/(7)y - (2)/(3)y^(2) + 2) - ((1)/(7)y - 3 + 2y^(2))

Simplify :3x^(2)-[7x-{5x^(2)-(2x-3)(4x-2)-5}-2]

Subtract (2x^(2) - 5x + 7) from (3x^(2) + 4x - 6)

Add: 5x^(2) + 3x - 8, 4x + 7 - 2x^(2) and 6 - 5x + 4x^(2)