The binomial (a + 5) is a factor of a2 + 7a + 10. what is the other factor? a2 + 7a + 10 = (a + 5)(a + )

Hello from MrBillDoesMath!

(a+2)

Discussion:

Suppose  

a^2 + 7a + 10 = (a+5) (a + b)

Then

a^2 + 7a + 10 =  a^2 + (ab + 5a) + 5b            => factor "a" from rhs, 2nd term

a^2 + 7a + 10 =  a^2 + (b + 5)a + 5b

so 5b = 10  => b = 2

Hence

a^2 + 7a + 10 = (a+5) (a + 2)

Thank you,

MrB

answer: answer is c!

ok i got to organize the

3/15 and 12/55

3*

aha

3*4 equals 12 but not

a: no

b:

8/24 12/35

no

gautie

it's c

5/18 = 25/90

5*5=25

18*5 = 90

hope that you!

one more happy customer!

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step-by-step explanation: