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Maslowich
3 years ago
13

21) Solve x2 - 13x - 30 = 0 by factoring.

Mathematics
2 answers:
stepan [7]3 years ago
7 0

Answer:

x=15 or x=-2

Step-by-step explanation:

x^2-13x-30=0

First find the multiples of 30 that will also equal to 13.

6*5=30 ,15*2=30 and 10*3=30

  1. x^2-15x+2x-30=0
  2. x(x-15)+2(x-15)=0
  3. (x-15)(x-2)=0
  4. x-15=0 or x+2=0
  5. x=15 or x=-2
stellarik [79]3 years ago
3 0

Answer:

x= 15, -2!!!!!!!!!!!!!!

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