kak tolong nanti di koreksi

1.) x(3-2x) + 6x-8 = 3x-2x²+6x-8
= -2x² + 9x -8 (c.)

2. (-2y-3)²= -4y²+6y+9 (b.)

3. t²-t-12= (t-4) (t+3) (d.)

4. -6p²+16p-8 = (-3p+2) (2p-4) (b.)