Answer:
uh just answer a question
Step-by-step explanation:
9 + 10 = 19
1 + 2 = 3
To add 2 to 1, look at a number line and start at the point 1 and go two numbers to the right to end at 3.
both are 2
check
2²+3(2)-10=0
4+6-10=0
10-10=0
0=0
