Sagot :
Answer:
Correct me if im wrong #CarryOnLearning
Step-by-step explanation:
1. [2(3)-3] x (3+5) x [3(3)+1]
3x8x10=240
2. A=(10x6)/2
A= 60/2
A= 30
3. P=2(l+w)
= 2(x^2+7x+1)
=2x^2+14x+2
4.) (3x^3+9x^2+3x+3)-(5x^2+x-5)= 3x^3+4x^2+4x-2
5.) (4x^3+x^2+5)-(3x^3+4x^2-7)= x^3-3x^2+12