Basic alqebra;; HAViNq DiFFiCULTyy?

Question

2.Multiply and simplify completely:

2sqrt24a^3b^2 multiplied by 5sqrt6ab

3.simplify completely.(3sqrt5)(2sqrt10)

4.sqrt40x^3 divided by sqrt10x

5.Divide and simplify completely. Don't forget to rationalize the denominator

sqrt5 divided by sqrt3

6.Simplify completely.

sqrt25x^4y^2

7.Simplify completely.

sqrt64x^3y^6

8.Multiply and Simplfy

(3x+5)(x-3)

9.Simplfy:

(3x^2-5x+8)-(x^2+4x+1)

10.Which of the following is a quadratic polynomial?

a.3x - 4

b.3x - 2y + 4z - 6

c.x^2-3x+2

d.x^4-3x^3-7x+6

11.multiply and simplify:sqrt2x multiplied by sqrt50x

12.What is the degree of this term: 4x^2y^3

Answer 1

2:  10sqrt144a^4b^3, 120a^2sqrtb^3

3.  6sqrt50 , 30sqrt2

4.  sqrt4x^2, 2x

5. (sqrt15)/3

6.  5x^2y

7. 8y^3 sqrt x^3

8. 3x^2+5x-9x-15=3x^2-4x-15, x1=3 and x2=5/3

9. 3x^2-5x+8-x^2-4x-1=2x^2-9x+7, x1=4, x2=17/2

10. i'm romanian, i don't really know what is the mean of quadratic

11. 10x

12. i don't understand this either  

Answer 2

10.Which of the following is a quadratic polynomial?

a.3x - 4

b.3x - 2y + 4z - 6

c.x^2-3x+2

d.x^4-3x^3-7x+6

ANSWER:

c.x^2-3x+2

Answer 3

8 you use foil method(3x+5)(X+3)

4x^2-9x

     5x-15

4X^2-4x-15      #9.when subtracting polynomials change the sign then

                        add. like so

                        3x^2-5x+8

                      +x^2-4x-1

answer=            4x^2-9x+7

Answer 4

i will give you 1 answer. do the rest yourself....ok random pick....number.....3!

3. (3sqrt5)(2sqrt10)

= 6sqrt30