Need Algebra help (QUICK) : Urgent Assignments

1. Which binomial is a difference of squares?

14x² – 81
  16x² + 81
  25x² – 81
  36x² + 81

Question 2.2. Factor:25m^6-16

(5
m
³ + 4)(5
m
³ – 4)

(5m³ + 8)(5m³ – 8)
(5m³ – 4)²
(5m³ – 8)²

Question 3.3. Factor: 64a^2b^36-1

(8
ab
¹⁸ + 1)(8
ab
¹⁸ – 1)

(8ab⁶ + 1)(8ab⁶ – 1)
(8ab¹⁸ – 1)
(8ab⁶ – 1)

Question 4.4. What is the completed factored form of 2x² – 50?

2(x² – 25)
  2(x + 5)(x – 5)
  2(x – 5)²
  2(x + 25)(x – 25)

Question 5.5. 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?

0.7t⁹
  0.07t⁹
  0.49
  0.7

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