8x4+5x4 +9= 61
The answer is 20.
5x is a common factor of all terms:- 5x(x3+4x2+9)
1x20 2x10 4x5
2X10 would work, as would 5X4.
The Commutative Property (of Multiplication) says that 4x5 = 5x4. So, If 4x5 = 20, then 5x4 will also be 20.
A number sentence is a mathematical equation, such as 2x6+5x4=32.
No It is not 5x4=20 and 5x100=500