Question

factorize the following algebraic expressions
4(s-t) -21(s-t)

Answer 1

Answer:

-17(s-t)

Step-by-step explanation:

4(s-t)-21(s-t)=(4-21)(s-t)=-17(s-t)

Answer 2

Answer:

4(s-t) - 21(s-t)

= s-t(4-21)_____________________ {take (s-t) as common}

= s-t(-17)

= 17t -17s