Question

its only two weeks until school gets out and i have a 49% in math so please help me!!!

1.Which binomial is a difference of squares?
(Points : 1)
14x^2 – 81

16x^2 + 81

25x^2 – 81

36x^2 + 81

2. Factor: 25m^6-16

(Points : 1)
(5m^3 + 4)(5m^3 – 4)

(5m^3 + 8)(5m^3 – 8)

(5m^3 – 4)^2

(5m^3 – 8)^2

3. Factor: 36a^2b^100-1

(Points : 1)
(6ab^10 – 1)^2

(6ab^50 – 1)^2

(6ab^10 + 1)(6ab^10 – 1)

(6ab^50 + 1)(6ab^50 – 1)

Answer 1

4. What is the completed factored form of 2x2 – 50?

(Points : 1)
2(x2 – 25)

2(x + 5)(x – 5)

2(x – 5)2

2(x + 25)(x – 25)

5. Nicole is factoring 0.49t18 – 25 by using the rule a2 – b2 = (a + b)(a – b). What will she use for the value of a?
(Points : 1)
0.7t9

0.07t9

0.49

0.7

Answer 2

1) (4x-9)(4x+9)
2) (5m^3-4)(5m^3+4)
3) none if you multiply them out
4) (0.7t^9-5)(0.7t^9+5)