If x= -5+4i then x⁴+9x³+35x²-x+4=

The modulus of (3-4i)(4+5i) is

Express (3-2i/ 5+4i)+ (3+2i/ 5-4i) in the form of a+ib

(1-i)(1+2i)(1-3i)=

(3+5ω+3ω²)⁶=

The modulus of (3-4i)(4+5i) is

The conjugate of (1+2i) (2-3i) is

If x=-5+4i then x⁴+9x³+35x²-x+4=

The modules of √3+i/(1+i)(1+√3i) is

(1+ω-ω²) (1-ω+ω²)=