Answer:

1. y²+2y+1

2. 9x²-24x+16

3. 16y²-y-4

4. 6p³-5p²-1

Step-by-step explanation:

1.(y+1)²

=y²+y+y+1

=y²+2y+1

2. (3x-4)(3x-4)

= 9x²-12x-12x+16

= 9x²-24x+16

3. (4y+2)(4y-2)

= 16y²-6y+6y-4

= 16y²-y-4

4. (2p-1)(3p²-3p+1)

= 6p³-6p²+2p-3p²+3p-1

= 6p³-4p-p-1

= 6p³-5p²-1