Simplify `(-4)^2`x`(-3)`x`(-5)^2`

Simplify: (5-x)(3-2x)(4-3x)

Simplify: x^2(x+2y)(x-3y)

Simplify: (5-x)(6-5x)(2-x)

Simplify (4x^2+2x^2-3(x-7)-(-2x^4-2x^2+3x-5))

Simplify: -4x^(2)+{(2x^(2)-3)-(4-3x^(2))}

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

Simplify: (3x-2)(2x-3)+\ (5x-3)(x+1)

Simplify: {4^(-1)"x"\ 3^(-1)}^2 (ii) \ \ \ {5^(-1)-:6^(-1)}^3 (iii) (2^(-1)+\ 3^(-1))^(-1) (iv) {3^(-1)"x"\ 4^(-1)}^(-1)\ "x"\ 5^(-1) (4^(-1)-\ 5^(-1))-:3^(-1)

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

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