The first one is 10ab + 20
Answer:
62.4
Step-by-step explanation:
1. 1.3x+37.44=1.9x
2. 1.3x+37.44-1.3x=1.9x-1.3x
0.6x=37.44
3. x=37.44/0.6=62.4
Answer:
Step-by-step explanation:
You have the following polynomial:
This expression is of the form:
that is, a difference between cubes. The factorization of such a polynomial is given by:
You apply the last expression to the polynomial given in the problem. But first you have:
finally, you obtain:
The first child is technically correct, but the second child is applying thoughts to the real world.