ireneagodoy8
ireneagodoy8
11-10-2020
Spanish
contestada
what is the factor of a^2 + 10a + 21
Respuesta :
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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