Brainliest to correct answer!! What is the least common denominator of the rational expressions below?

least common denominator of the rational expressions below is x(x-7)(x+3)

Step-by-step explanation:

factotized form of denominators

x²-7x

=x(x-7)

x²-4x-21

=x²-7x+3x-21

=x(x-7)+3(x-7)

=(x+3)(x-7)

i hope this will help you :)

answer:   (s+1)(s+4)

step-by-step explanation:

factor s2+5s+4

s2+5s+4

=(s+1)(s+4)

b

step-by-step explanation: