Answer:
i dont think you have the full question here...
Answer:
Step-by-step explanation:
Let her brother's age be x
Sarah is 2x + 4
Answer: (3x+2)(x+4)
Step-by-step explanation:Explanation:
3x2+10x−8
first multiply
3
with −8
and we get −24
then find two numbers that if we add or subtract we get
+10
and if we multiply we get
−24
and the numbers are
+12
and
−2
then we place those numbers as follow :-
3x2+12x−2x−8
then we group them
(3x2+12x)(−2x−8)
now take the common factor out.3x(x+4)−2(x+4)
then group the numbers outside of the brackets
(3x−2)(x+4)
If you are talking about building blocks, then you would get one 10 and 3 ones, then subtract that from 7 ones and would get 6