Answer:
See step by step answer
Step-by-step explanation:
the factors are (x+22)(x-10)=0
so x = -22 and 10, but a dimension cannot be negative, so the answer for x is 10 and then if you plug it back in the dimensions are 4 cm, 11 cm and 21 cm.
When you multiply 4 * 11 * 21 = 924, so you know it's correct.
If we multiply this out, we get the equation to be this:
5n-10=5n-10
5n=5n
n=n
This is a true statement, so there are infinite answers. Since whatever n is, the other side will be the same, it is an equation with infinite solutions.
Answer:72
Step-by-step explanation: 9x8 =72