ireneagodoy8 ireneagodoy8
  • 11-10-2020
  • Spanish
contestada

what is the factor of a^2 + 10a + 21​

Respuesta :

minipariyar
minipariyar minipariyar
  • 11-10-2020

Answer:

a^2+10a+21

=a^2+a(7+3 )+21

=a^2+7a+3a+21

=a(a+7)+3(a+7)

=(a+7)(a+3)

Answer Link
mieraanh mieraanh
  • 11-10-2020
a^2 + 10a + 21
a^2 + 7a + 3a + 21
a (a + 7) + 3 (a + 7)
(a + 7) (a + 3)
Answer Link

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