Can someone please help me with this algebra

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)

Write the equations in logarithmic form 7^3=343

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay