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1 vote
Solve the equation by factoring.

25d3 – 36d = 0

2 Answers

3 votes

Answer:

-6/5, 0, 6/5.

Explanation:

25d3 – 36d = 0

The GCF is d so we have:

d(25d^2 - 36) = 0

d = 0 is one solution, and:

25d^2 - 36 = 0

25d^2 = 36

d^2 = 36/25

d = +/- 6/5

d = -6/5, 6/5.

User Gap
by
6.2k points
3 votes

Answer:

-6/5, 0, 6/5

Explanation:

  1. First factor out the d and you are left with d(25d^2-36)=0
  2. (a+b)(a-b) = a^2-b^2
  3. Using that principle you can then simplify further by factoring it into d(5d+6)(5d-6)=0
  4. Then just solve to get the answers.
User Kevin Owocki
by
6.7k points