Problem 1.4x (3x3 – 5x2)

a3 (2a2 + 6a + 5)Problem2.

5y4 – 4y3 – 3y2 + y3 + 3y2 + 2 + 6y – 5Problem3.

(x2 + 7x + 12) – ( – x3 + 2x2 – x + 1)Problem4.

5x3 – 6x2 + x + 3 (x3 – 3x2 – x)Problem5.

y2 + 3y + 6 + 4 (y2 – 3y – 4)Problem6.

a3b2 (3a2 – 4ab + 5b2)Problem7.

– 7xy (x3 + 3x2y – 3xy2 + y3)Problem8.

mn2 (m2 – 4mn – 6n2) – 4mn2 (6m2 – n2)Problem9.

(a2 + 3a + 4) + (5a3 – a + 2)Problem10.

(y4 – 2y2 – y) + ( – 2y3 – y2 – 4y)Problem11.

Subtract a2 – 4a from 3a3 + 4a2 + a + 3Problem12.

Subtract – a3 + 2a from a3 + a2 – a + 3Problem13.

Thank you.