Question

1. Evaluate 6y^2 if y is -4.

2. Evaluate -4xy if x is 4 and y is -5.

3. Evaluate 8x^2 if x is 3.

4.Simplify 6x^2y + 4xy − 7xy.

5. Simplify 4x^2 + 3xy − 7xy + 2y^2.

6. Multiply (5x^2)(4x).

7. Divide (9x^2) by (3x).

8. Divide (12xy) by (4y^2).

9. Multiply (5)(4x^2).

10. Multiply (3x)(2x^2).

Answer 1

1. 576
2. 80
3. 576
4. 6x^2y+-3xy
5. 4x^2+-4xy+2y^2
6. 100x
7. 27x
8. .75x
9. 80x
10. 12x
hope this helps!!