Im want to know hiw too solve the problem 15-7+2
2 answers:
For this case we must solve the following expression:

By law of signs of the sum we have to comply:
- Equal signs are added and the same sign is placed.
- Different signs are subtracted and the major sign is placed.
So, we have:

Finally we have to:

Answer:
10
15-7+2
Use PEMDAS
P=Parentheses
E= Exponents
M=Multiplication
D=Division
A= Addition
S=Subtraction
15-7+2
15-5
=10
Answer: 10
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B=63
You divide 1134/18
I think.......
Answer:
distributive property
Step-by-step explanation:
they distribute the 1 to the 3 and 7 to make it easier
hope this helps
Alrighty
remember

means

and

and

for all real values of x
so

means

means

which simplifies to
1=x²+4x-5
minus 1 both sides
0=x²+4x-6
use quadratic formula or complete the square

and

2 solutions