Put these questions in Mathpapa’s Simplify calculator. It will give you the answer and all of the work you need.
First of all, you need to simplify the expressions in order to know whether they are equal. Then, it all depends on the expression, after you simplify an expression, it will seem much easier to determine that. <span />
Answer:
21
Step-by-step explanation:
2^2+b^2=5^2
4+b^2=25
b^2=21
<3
Red
