B. Perform the indicated operation. Express your answer
in simplest form
1. 2x + 4x =
2. 10y – 3y =
3. (2x)(3x) =
4. (4a + 3b) + (6a + 2b) =
5. 2x(x2 + 3x +4) =
2x2 +8x+3
+ 3x2+2x+1
4.
5-6. Multiply: (x+2)(x+5)
7-8. Divide 12a8 + 8a5 - 10a2 + 6a by 2 a
9-10. Multiply (4b2 + 5b -2) by (b+3)​